You buy 1000. You get filled 935. You hit sell. ThinkOrSwim rejects: wrong size. Dismiss. Retype. Submit. Price moved. dv360 ends this.
Works with ThinkOrSwim / Charles Schwab via official API
~ what sits in the corner of your screen while you trade ~
// the problem
You order 1000 shares. The fill comes back partial: 935. The other 65 never filled. You want out — now. You hit sell at 1000, the size you ordered.
ThinkOrSwim rejects. Wrong size error.
You dismiss the dialog. You look at your real position. You retype 935. You click sell. Three seconds gone. The price moved against you. Multiply that by 80 trades a day.
And there's no "sell half." No "flatten." No "exit 25%." Just you, the ticket, and the keyboard — every time.
// what dv360 does
One key. dv360 reads your actual filled quantity at that instant and submits the sell for the exact size you hold — partial fills, scaled-in adds, all of it. You never type a number.
Scale out cleanly. Hit F2 to dump half your position, F1 to lighten 25%. Whole-share rounding. Configurable percentages. Optional limit-at-bid or market.
A tiny always-on-top window shows your real-time position, average price, and unrealized P&L. Streamed direct from Schwab — no polling, no lag.
Every hotkey works against Schwab paperMoney before you ever flip the live switch. Test your bindings, your nerve, your finger memory. No real-money surprises.
// setup
Sign in once with your Schwab account via official OAuth. No password is stored, no broker switch needed.
Pick your hotkeys. Pick your default order type. Pick paper or live. Done.
Open ThinkOrSwim and trade like normal. dv360 sits in the corner. When you want out, hit the key.
// pricing
Public launch pricing will be in the $29–$49/month range. Beta users keep their first month free and lock in a permanent founder discount.
// early access
Tell me your email and your trading platform. If you trade ThinkOrSwim actively, you're at the top of the list.
Email me for early accessOpens your email client with a pre-filled message to admin@dv360.one. I read every one personally.
// questions you have
No. You keep using TOS for charting, scanning, watchlists — everything you already do. dv360 is a tiny window in the corner. It only intervenes when you press a hotkey to exit.
Native TOS hotkeys send a static order based on what you typed earlier. dv360 reads your real current position size at the moment of the keypress and sizes the order to match. Partial fills, scaled-in adds, manual exits — all reconciled automatically.
Yes — and we take it seriously. Every hotkey works in paper mode first. There's an explicit toggle to switch to live. Orders only fire on intentional keypresses, not on any background activity. The connection is via official Schwab Trader API — no scraping, no protocol hacks.
v1 is ThinkOrSwim / Charles Schwab only. DAS Trader support is on the roadmap as a premium tier for small-cap day traders. IBKR is being evaluated.
A solo developer who is also an active scalper. dv360 exists because the founder fights the same TOS order ticket every day. You can reply to any email or reach out at admin@dv360.one.