Some of the the following metrics are not native to META and must be built as custom You can find a video walkthrough on how to do that here:

HOOK RATE:

The percentage of people who stopped the scroll and viewed the first 3 seconds of the ad. Also known as Thumbstop.

Formula: 3 second video plays / Impressions x 100

Unit: %

HOLD RATE:

The percentage of people who, after watching the first three seconds of your video, continue watching for at least 15 seconds or to the video's end (whichever comes first). Or a specific chosen percentage of completion (eg 75%).

Formula: ThruPlays / Impressions x 100

Unit: %

Click Through rate: (CTR)

Formula: Link clicks / Impressions x 100

Unit: %