Eight Greeks
Delta, gamma, theta, vega and rho, plus vanna, charm and vomma for how the first ones change.
Greeks
From a Greek to a trade, in one panel
Every Greek for the position, at the current price or any move and date you choose. Step a strike up or down and watch them change. Set a target delta and see the shares or contracts that reach it.
Per leg and in total
See which leg carries the risk, with a minus and plus control to step each strike.
Target delta helper
Type the delta you want and Trident shows the shares or contracts that bring the position to it.
Greeks at any point on the graph
Move the price or the date and the panel shows the Greeks there, not only at today's price.
Turn a number into an order size
The helper does the arithmetic: target delta minus current delta, divided by the delta of the instrument you will use.
Step strikes, leg by leg
Each leg has its own controls, so you can see how moving one strike changes the whole position.
Live terminal screens; prices are for illustration.
Frequently asked questions
What is delta in plain words?
How much the position gains or loses for a one dollar move in the underlying, shown as share equivalents.
Why show vanna, charm and vomma?
They show how delta and vega change with volatility and time, which matters for positions held through a volatile period.
Are the Greeks live?
They are calculated from live prices and implied volatility when your broker supplies them, and from the model otherwise.