diff --git a/modules/yieldmoBidAdapter.js b/modules/yieldmoBidAdapter.js
index c1151617ac44..190a728f0147 100644
--- a/modules/yieldmoBidAdapter.js
+++ b/modules/yieldmoBidAdapter.js
@@ -1,8 +1,8 @@
 import * as utils from '../src/utils.js';
 import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
+import { Renderer } from '../src/Renderer.js';
 import includes from 'core-js-pure/features/array/includes';
-import find from 'core-js-pure/features/array/find.js';
 
 const BIDDER_CODE = 'yieldmo';
 const CURRENCY = 'USD';
@@ -10,10 +10,14 @@ const TIME_TO_LIVE = 300;
 const NET_REVENUE = true;
 const BANNER_SERVER_ENDPOINT = 'https://ads.yieldmo.com/exchange/prebid';
 const VIDEO_SERVER_ENDPOINT = 'https://ads.yieldmo.com/exchange/prebidvideo';
+const OUTSTREAM_VIDEO_PLAYER_URL = 'https://prebid-outstream-qa.yieldmo.com/bundle.js';
 const OPENRTB_VIDEO_BIDPARAMS = ['placement', 'startdelay', 'skipafter',
   'protocols', 'api', 'playbackmethod', 'maxduration', 'minduration', 'pos'];
 const OPENRTB_VIDEO_SITEPARAMS = ['name', 'domain', 'cat', 'keywords'];
-const localWindow = utils.getWindowTop();
+const LOCAL_WINDOW = utils.getWindowTop();
+const DEFAULT_PLAYBACK_METHOD = 2;
+const DEFAULT_START_DELAY = 0;
+const VAST_TIMEOUT = 15000;
 
 export const spec = {
   code: BIDDER_CODE,
@@ -48,12 +52,12 @@ export const spec = {
         page_url: bidderRequest.refererInfo.referer,
         bust: new Date().getTime().toString(),
         pr: bidderRequest.refererInfo.referer,
-        scrd: localWindow.devicePixelRatio || 0,
+        scrd: LOCAL_WINDOW.devicePixelRatio || 0,
         dnt: getDNT(),
         description: getPageDescription(),
-        title: localWindow.document.title || '',
-        w: localWindow.innerWidth,
-        h: localWindow.innerHeight,
+        title: LOCAL_WINDOW.document.title || '',
+        w: LOCAL_WINDOW.innerWidth,
+        h: LOCAL_WINDOW.innerHeight,
         userConsent: JSON.stringify({
           // case of undefined, stringify will remove param
           gdprApplies: utils.deepAccess(bidderRequest, 'gdprConsent.gdprApplies') || '',
@@ -198,8 +202,9 @@ function createNewBannerBid(response) {
  * @param bidRequest server request
  */
 function createNewVideoBid(response, bidRequest) {
-  const imp = find((utils.deepAccess(bidRequest, 'data.imp') || []), imp => imp.id === response.impid);
-  return {
+  const imp = (utils.deepAccess(bidRequest, 'data.imp') || []).find(imp => imp.id === response.impid);
+
+  let result = {
     requestId: imp.id,
     cpm: response.price,
     width: imp.video.w,
@@ -211,6 +216,36 @@ function createNewVideoBid(response, bidRequest) {
     ttl: TIME_TO_LIVE,
     vastXml: response.adm
   };
+
+  if (imp.placement !== 1) {
+
+    const renderer = Renderer.install({
+      url: OUTSTREAM_VIDEO_PLAYER_URL,
+      config: {
+        width: result.width,
+        height: result.height,
+        vastTimeout: VAST_TIMEOUT,
+        maxAllowedVastTagRedirects: 5,
+        allowVpaid: true,
+        autoPlay: true,
+        preload: true,
+        mute: true
+      },
+      id: imp.tagid,
+      loaded: false,
+    });
+
+    renderer.setRender(function (bid) {
+      bid.renderer.push(() => {
+        const { id, config } = bid.renderer;
+        window.YMoutstreamPlayer(bid, id, config);
+      });
+    });
+
+    result.renderer = renderer;
+  }
+
+  return result;
 }
 
 /**
@@ -297,10 +332,17 @@ function openRtbImpression(bidRequest) {
     .filter(param => includes(OPENRTB_VIDEO_BIDPARAMS, param))
     .forEach(param => imp.video[param] = videoParams[param]);
 
-  if (videoParams.skippable) {
-    imp.video.skip = 1;
-  }
+  if (videoParams.skippable) imp.video.skip = 1;
 
+  // if placement is not in-stream - it's always pre-roll (startdelay: 0) and playbackmethod = 2 in order to openRTB specs (Initiates on Page Load with Sound Off by Default) 
+
+  if (videoParams.placement !== 1) {
+    imp.video = {
+      ...imp.video,
+      startdelay: DEFAULT_START_DELAY,
+      playbackmethod: [ DEFAULT_PLAYBACK_METHOD ]
+    }
+  }
   return imp;
 }
 
diff --git a/modules/yieldmoBidAdapter.md b/modules/yieldmoBidAdapter.md
index 1b8b7b1b7413..54be295a1a18 100644
--- a/modules/yieldmoBidAdapter.md
+++ b/modules/yieldmoBidAdapter.md
@@ -69,3 +69,30 @@ var adUnits = [{ // Video adUnit
   }]
 }];
 ```
+
+Sample out-stream video ad unit config:
+```javascript
+var videoAdUnit = [{
+  code: 'div-video-ad-1234567890',
+  mediaTypes: {
+      video: {
+          playerSize: [640, 480],   // required
+          context: 'outstream',
+          mimes: ['video/mp4']      // required, array of strings
+      }
+  },
+  bids: [{
+    bidder: 'yieldmo',
+    params: {
+      placementId: '1524592390382976659',  // required
+      video: {
+        placement: 3,                      // required, integer ( 3,4,5 )
+        maxduration: 30,                   // required, integer
+        protocols: [2, 3],                 // required, array of integers
+        api: [2, 3],                       // required, array of integers
+        playbackmethod: [1,2]              // required, array of integers
+      }
+    }
+  }]
+}];
+```