Mark price vs last price
Futures PnL and liquidation use a mark price, not the last print on the tape. Fibonomy shows that mark next to your entry.
The last trade is not the number that hits you
The last price is one print. Exchanges mark perpetual positions against a mark price so a thin wick cannot instantly liquidate a book. If you only watch a spot chart, you are watching a different number than the one on your futures margin.
What Fibonomy shows
Fibonomy puts the exchange mark next to the entry you actually have. The gap is unrealized PnL in the contract’s terms — not a headline on CoinGecko, and not a signal.
Use it as context, then check the position
A USD snapshot on a coin page is still useful. It is not the mark on an open perp. After you check the snapshot, open the position to see the mark, the stop, and how much capital that row is using.
Apply this to an open position
Definitions are useful. The next step is seeing mark price and capital at risk on the positions you actually hold.
FAQ
Is mark price the same as index price?
Not always. Venues combine an index with a basis or funding component. Fibonomy shows the mark the connected exchange reports for that position.
Why can mark and last diverge?
Last is a trade. Mark is a constructed price meant to be harder to manipulate. Divergence is normal in fast tapes; it is why liquidation does not follow every wick.
Related guides
These pages explain how Fibonomy reads public market and position data. They are not financial advice.