diff --git a/sdk/scripts/grpc-multiuser-client-test-comparison.ts b/sdk/scripts/grpc-multiuser-client-test-comparison.ts
new file mode 100644
index 000000000..7c1ec78c0
--- /dev/null
+++ b/sdk/scripts/grpc-multiuser-client-test-comparison.ts
@@ -0,0 +1,156 @@
+import { grpcUserAccountSubscriber } from '../src/accounts/grpcUserAccountSubscriber';
+import { grpcMultiUserAccountSubscriber } from '../src/accounts/grpcMultiUserAccountSubscriber';
+import { Connection, Keypair, PublicKey } from '@solana/web3.js';
+import { DRIFT_PROGRAM_ID } from '../src';
+import { CommitmentLevel } from '@triton-one/yellowstone-grpc';
+import { AnchorProvider, Idl, Program } from '@coral-xyz/anchor';
+import driftIDL from '../src/idl/drift.json';
+import assert from 'assert';
+import { Wallet } from '../src';
+
+const GRPC_ENDPOINT = process.env.GRPC_ENDPOINT;
+const TOKEN = process.env.TOKEN;
+const RPC_ENDPOINT = process.env.RPC_ENDPOINT;
+
+const USER_ACCOUNT_PUBKEYS = [
+  // Add user account public keys here, e.g.:
+  // new PublicKey('...')
+];
+
+async function testGrpcUserAccountSubscriberV1VsV2() {
+  console.log('🚀 Initializing User Account Subscriber V1 vs V2 Test...');
+
+  if (USER_ACCOUNT_PUBKEYS.length === 0) {
+    console.error('❌ No user account public keys provided. Please add some to USER_ACCOUNT_PUBKEYS array.');
+    process.exit(1);
+  }
+
+  const connection = new Connection(RPC_ENDPOINT);
+  const wallet = new Wallet(new Keypair());
+
+  const programId = new PublicKey(DRIFT_PROGRAM_ID);
+  const provider = new AnchorProvider(
+    connection,
+    // @ts-ignore
+    wallet,
+    {
+      commitment: 'processed',
+    }
+  );
+
+  const program = new Program(driftIDL as Idl, programId, provider);
+
+  const grpcConfigs = {
+    endpoint: GRPC_ENDPOINT,
+    token: TOKEN,
+    commitmentLevel: CommitmentLevel.PROCESSED,
+    channelOptions: {
+      'grpc.keepalive_time_ms': 10_000,
+      'grpc.keepalive_timeout_ms': 1_000,
+      'grpc.keepalive_permit_without_calls': 1,
+    },
+  };
+
+  console.log(`📊 Testing ${USER_ACCOUNT_PUBKEYS.length} user accounts...`);
+
+  // V1: Create individual subscribers for each user account
+  const v1Subscribers = USER_ACCOUNT_PUBKEYS.map(
+    (pubkey) =>
+      new grpcUserAccountSubscriber(
+        grpcConfigs,
+        program,
+        pubkey,
+        { logResubMessages: true }
+      )
+  );
+
+  // V2: Create a single multi-subscriber and get per-user interfaces
+  const v2MultiSubscriber = new grpcMultiUserAccountSubscriber(
+    program,
+    grpcConfigs,
+    { logResubMessages: true }
+  );
+  const v2Subscribers = USER_ACCOUNT_PUBKEYS.map((pubkey) =>
+    v2MultiSubscriber.forUser(pubkey)
+  );
+
+  // Subscribe all V1 subscribers
+  console.log('🔗 Subscribing V1 subscribers...');
+  await Promise.all(v1Subscribers.map((sub) => sub.subscribe()));
+  console.log('✅ V1 subscribers ready');
+
+  // Subscribe all V2 subscribers
+  console.log('🔗 Subscribing V2 subscribers...');
+  await v2MultiSubscriber.subscribe();
+  console.log('✅ V2 subscribers ready');
+
+  const compare = () => {
+    try {
+      let passedTests = 0;
+      let totalTests = 0;
+
+      // Test each user account
+      for (let i = 0; i < USER_ACCOUNT_PUBKEYS.length; i++) {
+        const pubkey = USER_ACCOUNT_PUBKEYS[i];
+        const v1Sub = v1Subscribers[i];
+        const v2Sub = v2Subscribers[i];
+
+        totalTests++;
+
+        // 1. Test isSubscribed
+        assert.strictEqual(
+          v1Sub.isSubscribed,
+          v2Sub.isSubscribed,
+          `User ${pubkey.toBase58()}: isSubscribed should match`
+        );
+
+        // 2. Test getUserAccountAndSlot
+        const v1Data = v1Sub.getUserAccountAndSlot();
+        const v2Data = v2Sub.getUserAccountAndSlot();
+
+        // Compare the user account data
+        assert.deepStrictEqual(
+          v1Data.data,
+          v2Data.data,
+          `User ${pubkey.toBase58()}: account data should match`
+        );
+
+                // Slots might differ slightly due to timing, but let's check if they're close
+                const slotDiff = Math.abs(v1Data.slot - v2Data.slot);
+                if (slotDiff > 10) {
+                  console.warn(
+                    `⚠️  User ${pubkey.toBase58()}: slot difference is ${slotDiff} (v1: ${v1Data.slot}, v2: ${v2Data.slot})`
+                  );
+                }
+        
+                passedTests++;
+              }
+        
+              console.log(`✅ All comparisons passed (${passedTests}/${totalTests} user accounts)`);
+            } catch (error) {
+              console.error('❌ Comparison failed:', error);
+            }
+          };
+        
+          // Run initial comparison
+          compare();
+        
+          // Run comparison every second to verify live updates
+          const interval = setInterval(compare, 1000);
+        
+          const cleanup = async () => {
+            clearInterval(interval);
+            console.log('🧹 Cleaning up...');
+            await Promise.all([
+              ...v1Subscribers.map((sub) => sub.unsubscribe()),
+              ...v2Subscribers.map((sub) => sub.unsubscribe()),
+            ]);
+            console.log('✅ Cleanup complete');
+            process.exit(0);
+          };
+        
+          process.on('SIGINT', cleanup);
+          process.on('SIGTERM', cleanup);
+        }
+        
+        testGrpcUserAccountSubscriberV1VsV2().catch(console.error);
\ No newline at end of file
diff --git a/sdk/scripts/single-grpc-client-test.ts b/sdk/scripts/single-grpc-client-test.ts
index 0aca8985a..e6724e661 100644
--- a/sdk/scripts/single-grpc-client-test.ts
+++ b/sdk/scripts/single-grpc-client-test.ts
@@ -19,6 +19,7 @@ import {
 	ProgramAccount,
 } from '@coral-xyz/anchor';
 import driftIDL from '../src/idl/drift.json';
+import { grpcMultiUserAccountSubscriber } from '../src/accounts/grpcMultiUserAccountSubscriber';
 
 const GRPC_ENDPOINT = process.env.GRPC_ENDPOINT;
 const TOKEN = process.env.TOKEN;
@@ -96,18 +97,27 @@ async function initializeSingleGrpcClient() {
 	console.log(`📊 Markets: ${perpMarketIndexes.length} perp, ${spotMarketIndexes.length} spot`);
 	console.log(`🔮 Oracles: ${oracleInfos.length}`);
 
+
+	const grpcConfigs = {
+		endpoint: GRPC_ENDPOINT,
+		token: TOKEN,
+		commitmentLevel: CommitmentLevel.PROCESSED,
+		channelOptions: {
+			'grpc.keepalive_time_ms': 10_000,
+			'grpc.keepalive_timeout_ms': 1_000,
+			'grpc.keepalive_permit_without_calls': 1,
+		},
+	};
+
+	const multiUserSubsciber = new grpcMultiUserAccountSubscriber(
+		program,
+		grpcConfigs
+	);
+
 	const baseAccountSubscription = {
 		type: 'grpc' as const,
-		grpcConfigs: {
-			endpoint: GRPC_ENDPOINT,
-			token: TOKEN,
-			commitmentLevel: CommitmentLevel.PROCESSED,
-			channelOptions: {
-				'grpc.keepalive_time_ms': 10_000,
-				'grpc.keepalive_timeout_ms': 1_000,
-				'grpc.keepalive_permit_without_calls': 1,
-			},
-		},
+		grpcConfigs,
+		grpcMultiUserAccountSubscriber: multiUserSubsciber,
 	};
 
 	const config: DriftClientConfig = {
diff --git a/sdk/src/accounts/grpcMultiAccountSubscriber.ts b/sdk/src/accounts/grpcMultiAccountSubscriber.ts
index 8bdd1cbcc..7a442ac5c 100644
--- a/sdk/src/accounts/grpcMultiAccountSubscriber.ts
+++ b/sdk/src/accounts/grpcMultiAccountSubscriber.ts
@@ -372,6 +372,7 @@ export class grpcMultiAccountSubscriber<T, U = undefined> {
 				}
 			});
 		});
+		await this.fetch();
 	}
 
 	async removeAccounts(accounts: PublicKey[]): Promise<void> {
diff --git a/sdk/src/accounts/grpcMultiUserAccountSubscriber.ts b/sdk/src/accounts/grpcMultiUserAccountSubscriber.ts
new file mode 100644
index 000000000..b4ad528d5
--- /dev/null
+++ b/sdk/src/accounts/grpcMultiUserAccountSubscriber.ts
@@ -0,0 +1,274 @@
+import {
+	DataAndSlot,
+	GrpcConfigs,
+	NotSubscribedError,
+	ResubOpts,
+	UserAccountEvents,
+	UserAccountSubscriber,
+} from './types';
+import StrictEventEmitter from 'strict-event-emitter-types';
+import { EventEmitter } from 'events';
+import { Context, PublicKey } from '@solana/web3.js';
+import { Program } from '@coral-xyz/anchor';
+import { UserAccount } from '../types';
+import { grpcMultiAccountSubscriber } from './grpcMultiAccountSubscriber';
+
+export class grpcMultiUserAccountSubscriber {
+	private program: Program;
+	private multiSubscriber: grpcMultiAccountSubscriber<UserAccount>;
+
+	private userData = new Map<string, DataAndSlot<UserAccount>>();
+	private listeners = new Map<
+		string,
+		Set<StrictEventEmitter<EventEmitter, UserAccountEvents>>
+	>();
+	private keyToPk = new Map<string, PublicKey>();
+	private pendingAddKeys = new Set<string>();
+	private debounceTimer?: ReturnType<typeof setTimeout>;
+	private debounceMs = 20;
+	private isMultiSubscribed = false;
+	private userAccountSubscribers = new Map<string, UserAccountSubscriber>();
+	private grpcConfigs: GrpcConfigs;
+	resubOpts?: ResubOpts;
+
+	private handleAccountChange = (
+		accountId: PublicKey,
+		data: UserAccount,
+		context: Context,
+		_buffer?: unknown,
+		_accountProps?: unknown
+	): void => {
+		const k = accountId.toBase58();
+		this.userData.set(k, { data, slot: context.slot });
+		const setForKey = this.listeners.get(k);
+		if (setForKey) {
+			for (const emitter of setForKey) {
+				emitter.emit('userAccountUpdate', data);
+				emitter.emit('update');
+			}
+		}
+	};
+
+	public constructor(
+		program: Program,
+		grpcConfigs: GrpcConfigs,
+		resubOpts?: ResubOpts,
+		multiSubscriber?: grpcMultiAccountSubscriber<UserAccount>
+	) {
+		this.program = program;
+		this.multiSubscriber = multiSubscriber;
+		this.grpcConfigs = grpcConfigs;
+		this.resubOpts = resubOpts;
+	}
+
+	public async subscribe(): Promise<void> {
+		if (!this.multiSubscriber) {
+			this.multiSubscriber =
+				await grpcMultiAccountSubscriber.create<UserAccount>(
+					this.grpcConfigs,
+					'user',
+					this.program,
+					undefined,
+					this.resubOpts
+				);
+		}
+
+		// Subscribe all per-user subscribers first
+		await Promise.all(
+			Array.from(this.userAccountSubscribers.values()).map((subscriber) =>
+				subscriber.subscribe()
+			)
+		);
+		// Ensure we immediately register any pending keys and kick off underlying subscription/fetch
+		await this.flushPending();
+		// Proactively fetch once to populate data for all subscribed accounts
+		await this.multiSubscriber.fetch();
+		// Wait until the underlying multi-subscriber has data for every registered user key
+		const targetKeys = Array.from(this.listeners.keys());
+		if (targetKeys.length === 0) return;
+		// Poll until all keys are present in dataMap
+		// Use debounceMs as the polling cadence to avoid introducing new magic numbers
+		// eslint-disable-next-line no-constant-condition
+		while (true) {
+			const map = this.multiSubscriber.getAccountDataMap();
+			let allPresent = true;
+			for (const k of targetKeys) {
+				if (!map.has(k)) {
+					allPresent = false;
+					break;
+				}
+			}
+			if (allPresent) break;
+			await new Promise((resolve) => setTimeout(resolve, this.debounceMs));
+		}
+	}
+
+	public forUser(userAccountPublicKey: PublicKey): UserAccountSubscriber {
+		if (this.userAccountSubscribers.has(userAccountPublicKey.toBase58())) {
+			return this.userAccountSubscribers.get(userAccountPublicKey.toBase58())!;
+		}
+		const key = userAccountPublicKey.toBase58();
+		const perUserEmitter: StrictEventEmitter<EventEmitter, UserAccountEvents> =
+			new EventEmitter();
+		// eslint-disable-next-line @typescript-eslint/no-this-alias
+		const parent = this;
+		let isSubscribed = false;
+
+		const registerHandlerIfNeeded = async () => {
+			if (!this.listeners.has(key)) {
+				this.listeners.set(key, new Set());
+				this.keyToPk.set(key, userAccountPublicKey);
+				this.pendingAddKeys.add(key);
+				this.scheduleFlush();
+			}
+		};
+
+		const perUser: UserAccountSubscriber = {
+			get eventEmitter() {
+				return perUserEmitter;
+			},
+			set eventEmitter(_v) {},
+
+			get isSubscribed() {
+				return isSubscribed;
+			},
+			set isSubscribed(_v: boolean) {
+				isSubscribed = _v;
+			},
+
+			async subscribe(userAccount?: UserAccount): Promise<boolean> {
+				if (isSubscribed) return true;
+				if (userAccount) {
+					this.updateData(userAccount, 0);
+				}
+				await registerHandlerIfNeeded();
+				const setForKey = parent.listeners.get(key)!;
+				setForKey.add(perUserEmitter);
+				isSubscribed = true;
+				return true;
+			},
+
+			async fetch(): Promise<void> {
+				if (!isSubscribed) {
+					throw new NotSubscribedError(
+						'Must subscribe before fetching account updates'
+					);
+				}
+				const account = (await parent.program.account.user.fetch(
+					userAccountPublicKey
+				)) as UserAccount;
+				this.updateData(account, 0);
+			},
+
+			updateData(userAccount: UserAccount, slot: number): void {
+				parent.userData.set(key, { data: userAccount, slot });
+				perUserEmitter.emit('userAccountUpdate', userAccount);
+				perUserEmitter.emit('update');
+			},
+
+			async unsubscribe(): Promise<void> {
+				if (!isSubscribed) return;
+				const setForKey = parent.listeners.get(key);
+				if (setForKey) {
+					setForKey.delete(perUserEmitter);
+					if (setForKey.size === 0) {
+						parent.listeners.delete(key);
+						await parent.multiSubscriber.removeAccounts([userAccountPublicKey]);
+						parent.userData.delete(key);
+						parent.keyToPk.delete(key);
+						parent.pendingAddKeys.delete(key);
+					}
+				}
+				isSubscribed = false;
+			},
+
+			getUserAccountAndSlot(): DataAndSlot<UserAccount> {
+				const das = parent.userData.get(key);
+				if (!das) {
+					throw new NotSubscribedError(
+						'Must subscribe before getting user account data'
+					);
+				}
+				return das;
+			},
+		};
+
+		this.userAccountSubscribers.set(userAccountPublicKey.toBase58(), perUser);
+		return perUser;
+	}
+
+	private scheduleFlush(): void {
+		if (this.debounceTimer) return;
+		this.debounceTimer = setTimeout(() => {
+			void this.flushPending();
+		}, this.debounceMs);
+	}
+
+	private async flushPending(): Promise<void> {
+		const hasPending = this.pendingAddKeys.size > 0;
+		if (!hasPending) {
+			this.debounceTimer = undefined;
+			return;
+		}
+
+		const allPks: PublicKey[] = [];
+		for (const k of this.listeners.keys()) {
+			const pk = this.keyToPk.get(k);
+			if (pk) allPks.push(pk);
+		}
+		if (allPks.length === 0) {
+			this.pendingAddKeys.clear();
+			this.debounceTimer = undefined;
+			return;
+		}
+
+		if (!this.isMultiSubscribed) {
+			await this.multiSubscriber.subscribe(allPks, this.handleAccountChange);
+			this.isMultiSubscribed = true;
+			await this.multiSubscriber.fetch();
+			for (const k of this.pendingAddKeys) {
+				const pk = this.keyToPk.get(k);
+				if (pk) {
+					const data = this.multiSubscriber.getAccountData(k);
+					if (data) {
+						this.handleAccountChange(
+							pk,
+							data.data,
+							{ slot: data.slot },
+							undefined,
+							undefined
+						);
+					}
+				}
+			}
+		} else {
+			const ms = this.multiSubscriber as unknown as {
+				onChangeMap: Map<
+					string,
+					(
+						data: UserAccount,
+						context: Context,
+						buffer: unknown,
+						accountProps: unknown
+					) => void
+				>;
+			};
+			for (const k of this.pendingAddKeys) {
+				ms.onChangeMap.set(k, (data, ctx, buffer, accountProps) => {
+					this.multiSubscriber.setAccountData(k, data, ctx.slot);
+					this.handleAccountChange(
+						new PublicKey(k),
+						data,
+						ctx,
+						buffer,
+						accountProps
+					);
+				});
+			}
+			await this.multiSubscriber.addAccounts(allPks);
+		}
+
+		this.pendingAddKeys.clear();
+		this.debounceTimer = undefined;
+	}
+}
diff --git a/sdk/src/driftClient.ts b/sdk/src/driftClient.ts
index 4c71a49ab..010555604 100644
--- a/sdk/src/driftClient.ts
+++ b/sdk/src/driftClient.ts
@@ -368,6 +368,8 @@ export class DriftClient {
 				resubTimeoutMs: config.accountSubscription?.resubTimeoutMs,
 				logResubMessages: config.accountSubscription?.logResubMessages,
 				grpcConfigs: config.accountSubscription?.grpcConfigs,
+				grpcMultiUserAccountSubscriber:
+					config.accountSubscription?.grpcMultiUserAccountSubscriber,
 			};
 			this.userStatsAccountSubscriptionConfig = {
 				type: 'grpc',
diff --git a/sdk/src/driftClientConfig.ts b/sdk/src/driftClientConfig.ts
index ceb7b2603..e80534453 100644
--- a/sdk/src/driftClientConfig.ts
+++ b/sdk/src/driftClientConfig.ts
@@ -24,6 +24,7 @@ import { WebSocketDriftClientAccountSubscriberV2 } from './accounts/webSocketDri
 import { WebSocketDriftClientAccountSubscriber } from './accounts/webSocketDriftClientAccountSubscriber';
 import { grpcDriftClientAccountSubscriberV2 } from './accounts/grpcDriftClientAccountSubscriberV2';
 import { grpcDriftClientAccountSubscriber } from './accounts/grpcDriftClientAccountSubscriber';
+import { grpcMultiUserAccountSubscriber } from './accounts/grpcMultiUserAccountSubscriber';
 
 export type DriftClientConfig = {
 	connection: Connection;
@@ -73,6 +74,7 @@ export type DriftClientSubscriptionConfig =
 			) =>
 				| grpcDriftClientAccountSubscriberV2
 				| grpcDriftClientAccountSubscriber;
+			grpcMultiUserAccountSubscriber?: grpcMultiUserAccountSubscriber;
 	  }
 	| {
 			type: 'websocket';
diff --git a/sdk/src/user.ts b/sdk/src/user.ts
index 92512243f..1c3e0730f 100644
--- a/sdk/src/user.ts
+++ b/sdk/src/user.ts
@@ -137,15 +137,22 @@ export class User {
 		} else if (config.accountSubscription?.type === 'custom') {
 			this.accountSubscriber = config.accountSubscription.userAccountSubscriber;
 		} else if (config.accountSubscription?.type === 'grpc') {
-			this.accountSubscriber = new grpcUserAccountSubscriber(
-				config.accountSubscription.grpcConfigs,
-				config.driftClient.program,
-				config.userAccountPublicKey,
-				{
-					resubTimeoutMs: config.accountSubscription?.resubTimeoutMs,
-					logResubMessages: config.accountSubscription?.logResubMessages,
-				}
-			);
+			if (config.accountSubscription.grpcMultiUserAccountSubscriber) {
+				this.accountSubscriber =
+					config.accountSubscription.grpcMultiUserAccountSubscriber.forUser(
+						config.userAccountPublicKey
+					);
+			} else {
+				this.accountSubscriber = new grpcUserAccountSubscriber(
+					config.accountSubscription.grpcConfigs,
+					config.driftClient.program,
+					config.userAccountPublicKey,
+					{
+						resubTimeoutMs: config.accountSubscription?.resubTimeoutMs,
+						logResubMessages: config.accountSubscription?.logResubMessages,
+					}
+				);
+			}
 		} else {
 			if (
 				config.accountSubscription?.type === 'websocket' &&
diff --git a/sdk/src/userConfig.ts b/sdk/src/userConfig.ts
index d5ba2147b..9067833a7 100644
--- a/sdk/src/userConfig.ts
+++ b/sdk/src/userConfig.ts
@@ -4,6 +4,7 @@ import { BulkAccountLoader } from './accounts/bulkAccountLoader';
 import { GrpcConfigs, UserAccountSubscriber } from './accounts/types';
 import { WebSocketProgramAccountSubscriber } from './accounts/webSocketProgramAccountSubscriber';
 import { UserAccount } from './types';
+import { grpcMultiUserAccountSubscriber } from './accounts/grpcMultiUserAccountSubscriber';
 
 export type UserConfig = {
 	accountSubscription?: UserSubscriptionConfig;
@@ -17,6 +18,7 @@ export type UserSubscriptionConfig =
 			resubTimeoutMs?: number;
 			logResubMessages?: boolean;
 			grpcConfigs: GrpcConfigs;
+			grpcMultiUserAccountSubscriber?: grpcMultiUserAccountSubscriber;
 	  }
 	| {
 			type: 'websocket';