Topstep vs Bulenox (2026): SB Lock vs SB+$100 Lock, Phase-Shift vs Fork-Lock Trail

TL;DR — the 30-second verdict

Side-by-side: the rules that matter

Phase structure: 2-step vs 3-step

The phase ladder shapes your first 30 days at either firm.

Topstep — 2-step Combine → XFA

Topstep runs a single evaluation (the Combine) and a single funded phase (Express Funded Account, or XFA). Hit the profit target on the Combine ($3,000 on 50K, $6,000 on 100K, $9,000 on 150K), survive the trailing drawdown, and you're auto-converted to XFA. There's no second "Master" rung between eval and funded, and there's no activation fee to convert — the Combine subscription is the only cost until XFA payouts start.

Bulenox — 3-step Qualification → Master → Funded

Bulenox runs three rungs:

• Qualification: the entry eval. Hit profit target, no consistency rule, no minimum trading-days lock-in.
• Master: a payout-eligible bridge phase. 10 minimum trading days, 40% consistency, must accept transition to Funded after 3 payouts or lose Master.
• Funded: 5 minimum trading days per payout cycle, 40% consistency persists.

Trail philosophy: phase-shift vs fork-lock

Both firms support both intraday and EOD trail mechanics. The difference is who decides, and when.

Practically: if you don't know which trail mechanic suits you, Topstep removes the choice and standardises around "fast intraday eval, conservative EOD funded." Bulenox forces you to know your own style up front and live with the answer for the account's life.

Lock floor: SB vs SB+$100

Both firms ship a $3,000 drawdown on 100K, so the lock fires at the same equity level: $103,000 of total equity (Topstep) or $103,100 of total equity (Bulenox). But where the floor freezes is different.

The $100 sounds like a rounding error, and most of the time it is. The case where it matters: you ride the trail all the way up to lock, lock fires, and you then take a drawdown that clips just below the locked floor. With Bulenox you have an extra $100 of room before the account busts. With Topstep you don't.

Topstep is in the same lock-anchor family as TPT (both lock at SB exactly). Bulenox is in the same family as Apex 4.0, MyFundedFutures, and Tradeify (all lock at SB + $100).

Consistency rules: 50% scoped vs 40% scoped

Both firms scope their consistency rule — they don't enforce it across the full lifecycle. But where the scope sits is opposite.

Topstep — 50% on Combine, dropped on XFA

• Combine (eval): 50% consistency — single day's profit ÷ total profit at the moment of passing must be ≤ 0.50.
• XFA (funded): no consistency rule. Once funded, you can have asymmetric days — one big day, several small ones — and still get paid.
• Formula on Combine: max safe single-day P&L ≈ total × 0.50 ÷ (1 − 0.50) = total × 1.0. On a $6,000 Combine pass, no single day can exceed $6,000 (i.e. you literally cannot pass on a single day).

Bulenox — 40% on Master + Funded, none on Qualification

• Qualification: no consistency rule. Asymmetric days are fine, as long as you hit the profit target.
• Master + Funded: 40% rule applies. Single day's profit ÷ total profit balance at payout request must be ≤ 0.40.
• Formula on Master/Funded: max safe single-day P&L ≈ total × 0.40 ÷ (1 − 0.40) = total × 0.667. On $10,000 profit, no single day can exceed $6,667.

Deep dive → Consistency rules explained — the 30/35/40/50 threshold tiers, and the scope-fork that decides whether the rule binds during eval, during funded, or both. Topstep 50% and Bulenox 40% sit two tiers apart on the threshold axis, but the scope fork is the bigger structural difference: Topstep binds eval-only, Bulenox binds funded-only. MFFU Core 40% binds both, Tradeify Growth 35% binds both, Apex 4.0 30% binds funded-only, Earn2Trade GAU 30% binds eval-only. The threshold-tier × scope grid is what actually separates which trading style each firm rewards.

Platforms: TopstepX proprietary vs NinjaTrader-first

Topstep ships its own proprietary platform — TopstepX — free with every account, and it's the only Topstep route that runs without the daily loss limit (the August 2024 removal applies on TopstepX only; NinjaTrader still enforces DLL). Bulenox doesn't have a proprietary platform — it's a NinjaTrader / Rithmic-first firm with a free NT8 license bundled on Master.

Deep dive → Daily loss limit explained — the 4-archetype taxonomy of how firms handle DLL: platform-toggled (Topstep), fork-locked at signup (Bulenox + Apex 4.0), firmwide-deleted (TPT, MFFU), and per-program-configured (Tradeify). Topstep's TopstepX-only DLL removal and Bulenox's Option 1/Option 2 fork are structurally different mechanisms for the same end-state ("no DLL on this account") — Topstep gates it on platform choice (switchable trade-by-trade), Bulenox gates it on lifetime fork (locked at signup). The platform-toggled archetype is the most flexible, the fork-locked archetype is the most irreversible.

Neither firm supports Tradovate natively. If your full workflow lives on Tradovate, neither firm is a clean fit; consider Apex or Tradeify instead.

Payouts: cadence, split, and the activation-fee gap

The 100%-first-$10K carve-out is identical — the first ten grand you withdraw at either firm is yours in full before profit-split kicks in. The cadence difference favours Topstep slightly (5 business days vs 7 calendar days). The structural difference favours Topstep more meaningfully: no activation fee when you convert from eval to funded. Bulenox charges $98 on a 10K, $130 on a 25K, $220 on a 50K, and $490 on a 250K Qualification → Master conversion.

Worked examples

Example 1: 100K Combine pass on Topstep vs 100K Qualification pass on Bulenox

Trader hits $6,000 profit target on a 100K eval over 14 days. Largest day is $2,400.

• Topstep Combine (50% rule): $2,400 ÷ $6,000 = 40% — passes the 50% rule with margin. Combine clears. Auto-converts to XFA with no fee.
• Bulenox Qualification: no consistency rule. $2,400 day — passes. Need to pay $215 activation fee to convert to Master.
• Total cost to "funded": Topstep ≈ one month Combine sub ($165 for 100K). Bulenox ≈ one month Qualification sub ($215) + $215 activation = $430. Topstep is materially cheaper to get to a funded seat.

Example 2: Intraday wick on a 100K Combine vs Bulenox Option 1

Trader on a 100K account spikes to +$2,800 intraday, then closes the day at +$1,400.

• Topstep Combine (intraday trail): Floor moves with the $2,800 wick. New floor = 100,000 + 2,800 − 3,000 = $99,800. Wick raises floor whether held or not.
• Topstep XFA (EOD trail): If trader had already converted to XFA, only the $1,400 close counts. New floor = 100,000 + 1,400 − 3,000 = $98,400. Intraday wick is ignored.
• Bulenox Option 1 (intraday): Identical mechanic to Topstep Combine intraday — floor = $99,800. And the trader keeps this intraday mechanic for the account's life, not just during eval.
• Bulenox Option 2 (EOD): EOD close at 5pm CT — only $1,400 close counts. Floor = $98,400.

Example 3: First $10K withdrawal — cadence + split

Trader on a 100K funded account banks $11,000 over 8 weeks.

• Topstep XFA: First $10,000 paid 100% — trader takes $10,000. Next $1,000 = 90/10 split — trader takes $900. Total to trader: $10,900. Available via every-5-business-days cadence; first dollar reachable in week 1.
• Bulenox Funded: First $10,000 paid 100% — trader takes $10,000. Next $1,000 = 90/10 — trader takes $900. Total to trader: $10,900. Available weekly on Wednesdays, but minimum withdrawal is $1,000 per request so trader batches.

The net take-home is identical. The difference is cadence and friction — Topstep has tighter rhythm and no minimum; Bulenox has a $1,000 minimum and a weekly window.

Which firm fits you?

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