For dual-tax-resident investors · CA + US

Both passports. One research desk.

The only AI research desk built for investors who hold both sides of the 49th parallel — TSX and NYSE, NASDAQ and TSX-V. Quinn tracks 59 dual-listed pairs, MJDS spreads, FX-adjusted arbitrage, and treaty-aware cross-border tax in near-real-time.

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What a cross-border investor gets.

US-only tools quietly break every Canadian tax mechanic. We assume you file in both.

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Cross-Border Arbitrage

FX-adjusted spreads on 59 dual-listed US/Canada pairs — the price gap between a TSX and NYSE listing that retail screeners never surface. Spot the window before it closes.

59 pairs · FX-adjusted
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Treaty-Aware Tax

MJDS spread carry, treaty withholding, superficial-loss vs wash-sale, flow-through (FTS) credits, NR-301 and Form 1116 — the cross-border tax math, computed for the right passport.

MJDS · treaty · FTS
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Dual-Filing Coverage

The SEC record for both sides of a dual listing — EDGAR filings, the MJDS 40-F / F-10 cross-border record, and Form 4 insider transactions for the names you hold, side by side instead of in two terminals.

EDGAR · MJDS 40-F · Form 4

Quinn, grounded

Ask in plain English; every number Quinn returns clicks through to its exact SEC EDGAR source. Deterministic, no-LLM provenance — nothing is hallucinated.

provenance receipts
Built on evidence, not adjectives
59
dual-listed pairs tracked
13,500+
tickers covered (CA + US)
37 · 57
proprietary engines · tools
every number clicks to its source

See the methodology →

One desk. Both markets.

Stop juggling two terminals and a spreadsheet of FX rates. Start free — 30 Quinn queries a month, no card.

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Calculators you can use before signing up

Cross-border tax, superficial-loss timing and dual-listed spreads, computed in your browser. Nothing is saved and no sign-in is required. These are calculation tools, not advice.

Cross-Border Tax EstimatorWash Sale / Superficial Loss CheckerMJDS Spread CalculatorAll calculators