Best instrument by prop account size
The question “what should I trade on a 50K account” has an arithmetic answer before it has a strategy answer. Tick value, stop distance and the drawdown buffer decide which instruments fit; below 25K they decide almost entirely.
The account chooses the instrument
A strategy is a set of entry and exit rules; the account is a buffer and a cap. The instrument is where they meet: tick value times stop distance has to fit inside the buffer with room for a normal losing streak, and the position count has to stay under the funded-stage cap. Below a certain account size that arithmetic removes most of the choice.
Instrument by account size
| Account | Instrument and size | Why | Note |
|---|---|---|---|
| 5K – 10K | MGC (micro gold) or MES (micro S&P), 1 contract | MNQ moves $2 per point; a 50-point adverse move is $100, a fifth of a $500 buffer. MGC at $1 per tick and MES at $1.25 leave room for a normal stop. | The account decides the instrument, not the strategy |
| 25K | MNQ or MGC, 1–2 contracts | $1,000–$1,500 drawdown fits one or two micros of either. MNQ suits tight stops; MGC suits strategies that need range. | First size where a real choice exists |
| 50K | MNQ 2–4 / MGC 1–3 | $2,000–$2,500 drawdown. Four MNQ is $8 per point; a 100-point stop is $800, a third of the buffer. Three MGC carries similar risk with different behaviour. | Most common evaluation size; see the MNQ vs MGC comparison |
| 100K | MNQ 4–8 / MGC 2–4, or one mini | $3,000–$3,500 drawdown. One mini (NQ $20/pt, GC $100/pt) fits but removes the ability to scale out; micros keep it. | Micros for scale-out strategies, one mini only for single-exit strategies |
| 150K | MNQ 8–14 / MGC 3–4, or 1–2 minis | $4,500–$5,000 drawdown. Caps of 15 minis / 150 micros are far above what the buffer supports; the cap is not the target. | Scaling plans often halve the funded cap; check the scaling plan first |
The forex prop version
On a forex CFD account the same logic runs through lot size rather than contract count. NAS100 and XAUUSD are the equivalents of MNQ and MGC; a 100K swing account carries a 10% drawdown that accommodates either, and the binding constraint becomes the daily loss limit. The gold on a prop firm guide covers XAU.
How to run the numbers
Tick value, stop in ticks, contracts — multiplied, divided into the buffer, compared against the longest losing streak the win rate implies. The DLL sizing checker does this per firm; the consistency and streak calculator supplies the streak length.
Related
- Should you exit when the higher timeframe reverses?
- Multi-timeframe analysis: confluence or curve-fitting?
- Futures prop firms with one-time fees, EOD trailing and swing holding
FAQ
What should I trade on a 5K or 10K prop account?
Micro gold (MGC) or micro S&P (MES), one contract. MNQ at $2 per point makes a normal stop a fifth of the buffer on accounts that size.
MNQ or MGC on a 50K account?
Both fit at 2–4 contracts of MNQ or 1–3 of MGC. MNQ suits tight-stop strategies; MGC suits strategies that need range. The full comparison is in the MNQ vs MGC guide.
Should I trade a mini contract on a 100K account?
Only for single-exit strategies. One NQ or GC mini removes the ability to scale out; micros keep it. The buffer supports either; the strategy structure decides.
Does the contract cap tell me how much to trade?
No. Caps of 15 minis or 150 micros on a 150K account are far above what the buffer supports. The cap is a ceiling; the buffer sets the size.
Firm rules verified September 2026. Prop firm rules change frequently; confirm on the firm's site before purchasing an evaluation.