← blog · 2026-09-09 · 2 min read
fomo.family explained: how social trading works on Robinhood Chain
fomo.family is a social trading app on Robinhood Chain where you follow traders and copy their memecoin buys. Here is how the trades actually settle on-chain, what a fomo router is, and what that means for anyone reading the tape.
fomo.family is a social trading app built on Robinhood Chain. You pick traders to follow, see their buys as they happen, and can copy a trade in one tap. Traders are ranked by realized profit, and the leaderboard is public, which turns memecoin trading into a spectator sport with a scoreboard. Volume has grown fast through August and September 2026, and some traders have turned four-figure stakes into six and seven figures within weeks.
This post is about what happens under the hood, because the on-chain mechanics decide what a tool like hoodwatch can and cannot know.
How a fomo trade settles
Every token on fomo trades in a Uniswap V4 pool on Robinhood Chain. Uniswap V4 uses a single PoolManager contract for all pools, so swaps show up as PoolManager events rather than per-pool contracts. fomo routes user trades through its own router contracts, and the quote side (the ETH or USDG that pays for a buy) comes from a fomo custody contract rather than from the user's wallet directly.
That has one important consequence: on-chain, a legitimate fomo buy and a wash buy look identical. The custody contract pays for both. The relayer addresses that submit the transactions vary. What tells them apart is behavior over time, not the shape of a single transaction, which is why hoodwatch scores patterns (synced first buys, empty pools, deployer history) rather than individual fills.
Attributing trades to traders
fomo trades are made by wallets, and fomo publishes which wallets belong to which handle. hoodwatch maintains that mapping for roughly two hundred tracked traders, refreshed as new wallets appear, so a swap can be shown as "@handle bought $340 of TOKEN" instead of a bare address. Wallets that are not mapped still appear on the all-wallets view, but the ranked and alpha computations only use attributed fills.
Token launches on fomo
Tokens launched through fomo carry metadata in the token contract itself: a description, a socials string, the deployer address and a logo. That is useful, because it means the token's own website and X account are readable straight from the chain, without trusting DexScreener to have indexed them. hoodwatch reads these functions for every new token and uses them both on the token page and as a signal: a token with a full launch record and a deployer with a clean history is a different object from an 8 KB custom ERC-20 with no metadata and a retained owner.
What "following" does to prices
Copy-trading concentrates buying into the seconds after a popular trader's entry. That is good for the trader who is first and bad for everyone who arrives in the crowd. Across our tracked fills, tokens with three or more ranked buyers already in were down sharply six hours later on median, while entries within about two minutes of the first ranked buy had a positive median one-hour return. The mechanics explain why: the follower wave is the exit liquidity for the leader.
We wrote up the numbers in What 30 days of fomo tape data say about following the crowd. If you are new to the chain itself, start with Robinhood Chain memecoins: how trading works under the hood.
hoodwatch is unofficial and read-only, not affiliated with fomo.family or Robinhood. Nothing here is financial advice. Open the live tape.