Principal Trading Firm
a.k.a. PTF, Proprietary trading firm
A firm that trades only with its own money, often using high-speed algorithms, rather than serving clients.
A principal trading firm (PTF) trades purely for itself. No customers, no client accounts, just its own capital and its own strategies. Many are high-speed operations running algorithms that make markets and capture tiny price gaps thousands of times a day.
In forex, PTFs have become major liquidity providers on electronic platforms, quoting prices alongside the big banks. Their speed helps keep spreads tight, though they can also pull back quickly when markets get chaotic.
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