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Vendor reportMetricool, 2026

Mentioning other accounts lifts Instagram reach most for tiny accounts: +108%, vs +4% for huge accounts

Organic reach & algorithm



Instagram reach increase from mentions by account size

Instagram reach increase from mentions by account size
Account SizeReach Increase (%)
Tiny108%
Small37%
Medium31%
Big9%
Huge4%
Reader Note:
Posts containing a mention were not chosen at random, and a mention often goes with a collaboration or a repost that would carry reach on its own. The gap between small and large accounts is also partly arithmetic: a small account has more room to double its reach than a large one.
Evidence:
Observed behaviour
Vendor interest:
Moderate — This comes from a company with a commercial interest in this market, so it is not a neutral source.
Sample:
24,364,803 Instagram posts from 375,118 accounts worldwide, covering January and February 2025 and January and February 2026 — a two-month window, not a full year. Accounts with zero publications were excluded, as were posts with zero impressions or zero interactions, so every average in the study is computed over posts that got at least one interaction. Accounts were segmented by follower size into Huge (1M+), Big (100K-1M), Medium (10K-100K), Small (2K-10K) and Tiny (0-2K). Outliers were not removed. Growth has a non-obvious definition: an account counts as having grown only if it crossed into a higher follower tier, so an account that went from 3K to 9K followers is not counted as having grown, and the study's own methodology notes that crossing Tiny to Small takes far fewer new followers than crossing Medium to Big — growth rates are therefore not comparable across tiers.

Good for

Comparing yourself against a similar segment, and choosing what to test next.

Not for

  • Saying that one thing caused another, or predicting what you would get.
  • This comes from a company with a commercial interest in this market, so it is not a neutral source.
  • The two groups were not split at random — they picked their own side. The difference may have been there before anything was measured.

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