Auto-Mirror PRO

Let TailWins place your portfolio's trades automatically — at your weights, inside your guardrails. We never hold your funds; we only ever place orders on the account you connect, and you can revoke access instantly.

What copying actually returns — measured, not promised. Copying costs real money: in our simulation a copier reacting within 60 seconds got a fill on ~60% of trades and paid about 0.8–1.0¢ per $1 share more than the trader they copied. Net of taker fees, copying the average profitable trader lost money; copying the top quartile by our skill score earned +1.4¢ per $1 share on held-out data. Details in the risk disclosure.

1 · Choose & weight your traders

Give each trader a share of your account — up to 100%. Whatever you don't allocate stays as cash. These weights are exactly what Auto-Mirror places for you below.

2 · Connect your accountNot connected
How this works — read before connecting. To place trades for you automatically, TailWins signs orders with the Polymarket credentials you connect. Our software only ever places Polymarket orders — never withdrawals or transfers — and stays within the caps you set below; keys are encrypted at rest and never shown again, and you can wipe them instantly. Connect a dedicated wallet funded only with the amount you intend to trade — never your main wallet. Auto-Mirror runs in dry-run until live trading is enabled.
Open developer portal ↗
Base64 Ed25519 secret. Shown only once when you create the key.
3 · Set your guardrails
$
Your call. We don't size your bets for you.
$
A ceiling on the above, so one oversized trade can't run away with an allocation.
$
Your choice. If your account drops this much in a day, Auto-Mirror pauses itself until you turn it back on. Set 0 for no auto-stop.
If the price has moved more than this from the price the trader got, we skip. On US, the fee-adjusted same-or-better gate also applies.
Half of copies land within 30 seconds, but a signal can arrive late. Past this age we don't copy it. Set 0 for no limit.
Skip trades where the market is wider than this. Set 0 for no limit.

4 · ActivateIdle
When live trading is enabled, Auto-Mirror places real trades with real money on your account. It is a tool you operate — you are responsible for its trades. Start small.