diff --git a/api.md b/api.md
index 6157766..67a0591 100644
--- a/api.md
+++ b/api.md
@@ -24,23 +24,23 @@ Methods:
 - <code title="get /entities/{entity_id}">client.entities.<a href="./src/resources/entities/entities.ts">retrieve</a>(entityId) -> Entity</code>
 - <code title="get /entities">client.entities.<a href="./src/resources/entities/entities.ts">list</a>() -> EntityListResponse</code>
 
-## PnlSummary
+## PnlSummaries
 
 Methods:
 
-- <code title="get /entities/{entity_id}/pnl-summary">client.entities.pnlSummary.<a href="./src/resources/entities/pnl-summary.ts">retrieve</a>(entityId) -> PnlSummary</code>
+- <code title="get /entities/{entity_id}/pnl-summary">client.entities.pnlSummaries.<a href="./src/resources/entities/pnl-summaries.ts">retrieve</a>(entityId) -> PnlSummary</code>
 
-## RegtMargin
+## RegtMargins
 
 Methods:
 
-- <code title="get /entities/{entity_id}/regt-margin">client.entities.regtMargin.<a href="./src/resources/entities/regt-margin.ts">retrieve</a>(entityId) -> RegtMargin</code>
+- <code title="get /entities/{entity_id}/regt-margin">client.entities.regtMargins.<a href="./src/resources/entities/regt-margins.ts">retrieve</a>(entityId) -> RegtMargin</code>
 
-## PortfolioMargin
+## PortfolioMargins
 
 Methods:
 
-- <code title="get /entities/{entity_id}/portfolio-margin">client.entities.portfolioMargin.<a href="./src/resources/entities/portfolio-margin.ts">retrieve</a>(entityId) -> PortfolioMargin</code>
+- <code title="get /entities/{entity_id}/portfolio-margin">client.entities.portfolioMargins.<a href="./src/resources/entities/portfolio-margins.ts">retrieve</a>(entityId) -> PortfolioMargin</code>
 
 ## RegtMarginSimulations
 
diff --git a/src/resources/entities/entities.ts b/src/resources/entities/entities.ts
index e17bc2f..c6cce93 100644
--- a/src/resources/entities/entities.ts
+++ b/src/resources/entities/entities.ts
@@ -2,19 +2,18 @@
 
 import { APIResource } from '@clear-street/studio-sdk/resource';
 import * as Core from '@clear-street/studio-sdk/core';
-import { PnlSummary } from './pnl-summary';
-import { RegtMargin } from './regt-margin';
-import { PortfolioMargin } from './portfolio-margin';
 import * as EntitiesAPI from '@clear-street/studio-sdk/resources/entities/entities';
-import * as PnlSummaryAPI from '@clear-street/studio-sdk/resources/entities/pnl-summary';
-import * as PortfolioMarginAPI from '@clear-street/studio-sdk/resources/entities/portfolio-margin';
-import * as RegtMarginAPI from '@clear-street/studio-sdk/resources/entities/regt-margin';
+import * as PnlSummariesAPI from '@clear-street/studio-sdk/resources/entities/pnl-summaries';
+import * as PortfolioMarginsAPI from '@clear-street/studio-sdk/resources/entities/portfolio-margins';
 import * as RegtMarginSimulationsAPI from '@clear-street/studio-sdk/resources/entities/regt-margin-simulations';
+import * as RegtMarginsAPI from '@clear-street/studio-sdk/resources/entities/regt-margins';
 
 export class Entities extends APIResource {
-  pnlSummary: PnlSummaryAPI.PnlSummary = new PnlSummaryAPI.PnlSummary(this._client);
-  regtMargin: RegtMarginAPI.RegtMargin = new RegtMarginAPI.RegtMargin(this._client);
-  portfolioMargin: PortfolioMarginAPI.PortfolioMargin = new PortfolioMarginAPI.PortfolioMargin(this._client);
+  pnlSummaries: PnlSummariesAPI.PnlSummaries = new PnlSummariesAPI.PnlSummaries(this._client);
+  regtMargins: RegtMarginsAPI.RegtMargins = new RegtMarginsAPI.RegtMargins(this._client);
+  portfolioMargins: PortfolioMarginsAPI.PortfolioMargins = new PortfolioMarginsAPI.PortfolioMargins(
+    this._client,
+  );
   regtMarginSimulations: RegtMarginSimulationsAPI.RegtMarginSimulations =
     new RegtMarginSimulationsAPI.RegtMarginSimulations(this._client);
 
@@ -553,6 +552,9 @@ export namespace Entities {
   export import PortfolioMargin = EntitiesAPI.PortfolioMargin;
   export import RegtMargin = EntitiesAPI.RegtMargin;
   export import EntityListResponse = EntitiesAPI.EntityListResponse;
+  export import PnlSummaries = PnlSummariesAPI.PnlSummaries;
+  export import RegtMargins = RegtMarginsAPI.RegtMargins;
+  export import PortfolioMargins = PortfolioMarginsAPI.PortfolioMargins;
   export import RegtMarginSimulations = RegtMarginSimulationsAPI.RegtMarginSimulations;
   export import SimulationID = RegtMarginSimulationsAPI.SimulationID;
   export import RegtMarginSimulationCreateResponse = RegtMarginSimulationsAPI.RegtMarginSimulationCreateResponse;
diff --git a/src/resources/entities/index.ts b/src/resources/entities/index.ts
index 6c9d034..2051976 100644
--- a/src/resources/entities/index.ts
+++ b/src/resources/entities/index.ts
@@ -1,9 +1,9 @@
 // File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 export { Entity, PnlSummary, PortfolioMargin, RegtMargin, EntityListResponse, Entities } from './entities';
-export { PnlSummary } from './pnl-summary';
-export { PortfolioMargin } from './portfolio-margin';
-export { RegtMargin } from './regt-margin';
+export { PnlSummaries } from './pnl-summaries';
+export { PortfolioMargins } from './portfolio-margins';
+export { RegtMargins } from './regt-margins';
 export {
   SimulationID,
   RegtMarginSimulationCreateResponse,
diff --git a/src/resources/entities/pnl-summary.ts b/src/resources/entities/pnl-summaries.ts
similarity index 91%
rename from src/resources/entities/pnl-summary.ts
rename to src/resources/entities/pnl-summaries.ts
index 3adc3f2..ae8e626 100644
--- a/src/resources/entities/pnl-summary.ts
+++ b/src/resources/entities/pnl-summaries.ts
@@ -4,7 +4,7 @@ import { APIResource } from '@clear-street/studio-sdk/resource';
 import * as Core from '@clear-street/studio-sdk/core';
 import * as EntitiesAPI from '@clear-street/studio-sdk/resources/entities/entities';
 
-export class PnlSummary extends APIResource {
+export class PnlSummaries extends APIResource {
   /**
    * Get PNL summary for all accounts in an entity.
    */
diff --git a/src/resources/entities/portfolio-margin.ts b/src/resources/entities/portfolio-margins.ts
similarity index 91%
rename from src/resources/entities/portfolio-margin.ts
rename to src/resources/entities/portfolio-margins.ts
index 0d50c7d..570c6b8 100644
--- a/src/resources/entities/portfolio-margin.ts
+++ b/src/resources/entities/portfolio-margins.ts
@@ -4,7 +4,7 @@ import { APIResource } from '@clear-street/studio-sdk/resource';
 import * as Core from '@clear-street/studio-sdk/core';
 import * as EntitiesAPI from '@clear-street/studio-sdk/resources/entities/entities';
 
-export class PortfolioMargin extends APIResource {
+export class PortfolioMargins extends APIResource {
   /**
    * Get latest portfolio margin calculation for the given entity
    */
diff --git a/src/resources/entities/regt-margin.ts b/src/resources/entities/regt-margins.ts
similarity index 92%
rename from src/resources/entities/regt-margin.ts
rename to src/resources/entities/regt-margins.ts
index bb3febf..a5a7f5a 100644
--- a/src/resources/entities/regt-margin.ts
+++ b/src/resources/entities/regt-margins.ts
@@ -4,7 +4,7 @@ import { APIResource } from '@clear-street/studio-sdk/resource';
 import * as Core from '@clear-street/studio-sdk/core';
 import * as EntitiesAPI from '@clear-street/studio-sdk/resources/entities/entities';
 
-export class RegtMargin extends APIResource {
+export class RegtMargins extends APIResource {
   /**
    * Get the latest Reg-T margin calculation for the given entity
    */
diff --git a/tests/api-resources/entities/pnl-summary.test.ts b/tests/api-resources/entities/pnl-summaries.test.ts
similarity index 83%
rename from tests/api-resources/entities/pnl-summary.test.ts
rename to tests/api-resources/entities/pnl-summaries.test.ts
index 09d2976..37e32d4 100644
--- a/tests/api-resources/entities/pnl-summary.test.ts
+++ b/tests/api-resources/entities/pnl-summaries.test.ts
@@ -8,9 +8,9 @@ const studioSDK = new StudioSDK({
   baseURL: process.env['TEST_API_BASE_URL'] ?? 'http://127.0.0.1:4010',
 });
 
-describe('resource pnlSummary', () => {
+describe('resource pnlSummaries', () => {
   test('retrieve', async () => {
-    const responsePromise = studioSDK.entities.pnlSummary.retrieve('x');
+    const responsePromise = studioSDK.entities.pnlSummaries.retrieve('x');
     const rawResponse = await responsePromise.asResponse();
     expect(rawResponse).toBeInstanceOf(Response);
     const response = await responsePromise;
@@ -23,7 +23,7 @@ describe('resource pnlSummary', () => {
   test('retrieve: request options instead of params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      studioSDK.entities.pnlSummary.retrieve('x', { path: '/_stainless_unknown_path' }),
+      studioSDK.entities.pnlSummaries.retrieve('x', { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(StudioSDK.NotFoundError);
   });
 });
diff --git a/tests/api-resources/entities/portfolio-margin.test.ts b/tests/api-resources/entities/portfolio-margins.test.ts
similarity index 82%
rename from tests/api-resources/entities/portfolio-margin.test.ts
rename to tests/api-resources/entities/portfolio-margins.test.ts
index effe118..cdf2bb1 100644
--- a/tests/api-resources/entities/portfolio-margin.test.ts
+++ b/tests/api-resources/entities/portfolio-margins.test.ts
@@ -8,9 +8,9 @@ const studioSDK = new StudioSDK({
   baseURL: process.env['TEST_API_BASE_URL'] ?? 'http://127.0.0.1:4010',
 });
 
-describe('resource portfolioMargin', () => {
+describe('resource portfolioMargins', () => {
   test('retrieve', async () => {
-    const responsePromise = studioSDK.entities.portfolioMargin.retrieve('x');
+    const responsePromise = studioSDK.entities.portfolioMargins.retrieve('x');
     const rawResponse = await responsePromise.asResponse();
     expect(rawResponse).toBeInstanceOf(Response);
     const response = await responsePromise;
@@ -23,7 +23,7 @@ describe('resource portfolioMargin', () => {
   test('retrieve: request options instead of params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      studioSDK.entities.portfolioMargin.retrieve('x', { path: '/_stainless_unknown_path' }),
+      studioSDK.entities.portfolioMargins.retrieve('x', { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(StudioSDK.NotFoundError);
   });
 });
diff --git a/tests/api-resources/entities/regt-margin.test.ts b/tests/api-resources/entities/regt-margins.test.ts
similarity index 83%
rename from tests/api-resources/entities/regt-margin.test.ts
rename to tests/api-resources/entities/regt-margins.test.ts
index 1d90fcb..013e188 100644
--- a/tests/api-resources/entities/regt-margin.test.ts
+++ b/tests/api-resources/entities/regt-margins.test.ts
@@ -8,9 +8,9 @@ const studioSDK = new StudioSDK({
   baseURL: process.env['TEST_API_BASE_URL'] ?? 'http://127.0.0.1:4010',
 });
 
-describe('resource regtMargin', () => {
+describe('resource regtMargins', () => {
   test('retrieve', async () => {
-    const responsePromise = studioSDK.entities.regtMargin.retrieve('x');
+    const responsePromise = studioSDK.entities.regtMargins.retrieve('x');
     const rawResponse = await responsePromise.asResponse();
     expect(rawResponse).toBeInstanceOf(Response);
     const response = await responsePromise;
@@ -23,7 +23,7 @@ describe('resource regtMargin', () => {
   test('retrieve: request options instead of params are passed correctly', async () => {
     // ensure the request options are being passed correctly by passing an invalid HTTP method in order to cause an error
     await expect(
-      studioSDK.entities.regtMargin.retrieve('x', { path: '/_stainless_unknown_path' }),
+      studioSDK.entities.regtMargins.retrieve('x', { path: '/_stainless_unknown_path' }),
     ).rejects.toThrow(StudioSDK.NotFoundError);
   });
 });