NAS100, US100 and USTEC are the same index
All three names are the Nasdaq 100 index as a CFD. Brokers simply label it differently. The S&P 500 (US500 or SPX500) and the Dow Jones (US30) are in the instrument list too.
Contract size decides the point value
Index CFDs have no single standard. The contract size in your platform tells you what one point is worth on one lot.
| Contract size | Per point, 1 lot | Per point, 0.10 lot |
|---|---|---|
| 1 | $1 | $0.10 |
| 10 | $10 | $1 |
| 20 | $20 | $2 |
Lot size = Money at risk ÷ (Stop in points × Contract size)
NAS100 lot size example
A $10,000 account risking 1% ($100) with a 50-point stop: with contract size 1 that is 100 ÷ (50 × 1) = 2.00 lots. With contract size 20 it is 100 ÷ (50 × 20) = 0.10 lots. Same risk, very different lot sizes, which is why the contract size matters.
Margin on NAS100
At 30,600 with contract size 1, one lot is worth $30,600, so it needs $1,530 of margin at 1:20 and $3,060 at 1:10. Funded accounts often use low leverage on indices; the prop firm lot size calculator keeps you inside the margin limit.