Choosing Exchange-Traded or OTC Vanilla Options
Summary
The document compares exchange-traded and over-the-counter markets for speculation or hedging, including when the same vanilla option is available in both venues. It frames the decision around contract size and dates: exchanges offer standardized ranges, while OTC dealing can accommodate needs outside those terms. Repeat business may also favor a direct counterparty relationship, where ongoing service and negotiated spreads can matter. A counterparty’s incentive to preserve future business may help constrain pricing, though this is not a guarantee of fair terms.
The discussion also points to fees, credit arrangements, collateral agreements, and margin costs as factors to compare. It offers no empirical price or cost comparison, and its recommendation is conditional: standardized trades without relationship benefits may suit an exchange, while other cases warrant investigating OTC terms. Actual economics depend on the specific product, trade size, and counterparty arrangements.
Key ideas
- Exchange-traded options use standardized contract sizes and value dates.
- OTC contracts can address trade sizes or dates outside exchange specifications.
- Repeat OTC business may bring relationship-based service and negotiated spreads.
- Credit, collateral, and margin costs can affect the choice of venue.
- Venue selection depends on the trade’s terms and the value of a counterparty relationship.
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Full text
# Rationale behind trading exchange-traded vs OTC products? # Rationale behind trading exchange-traded vs OTC products? Let's say I am running a fund and I want to place some bets on the market (i.e. speculate) or hedge my current positions. Starting from this, what would be my incentives to go for exchange-traded products instead of OTC products, and vice-versa? Of course exchange-traded products would not be ideal if I am into exotic derivatives. But assuming that I just want to buy/sell a given vanilla options, which is available on both types of market, does it make more sense to go OTC or exchange-traded? My intuition is that if I go exchange-traded, I have less chances to get ripped-off as the price is "fairly" determined by the supply and demand law than if I go OTC. But in this case, why would vanilla options be traded OTC as well? Are they cheaper when being traded OTC (or different fees as well)? ## Answer by rupweb (score 2, accepted) https://quant.stackexchange.com/a/34566 Here's some criteria: For example deal size, an exchange will trade a range of sizes from x to y and outside that you need OTC. Then there's value dates, an exchange will trade a range of standard value dates and outside that range you need OTC. Then there's the fact of one off or repeat business. If you've got a lot of repeat business you may prefer the OTC 1-to-1 relationship and advisory services compared with more anonymous trading on an exchange. I mean if your OTC counterparty continually rips you off on repeat business you're going to end the relationship, right? So the long term relationship is an incentive for you both to go OTC. There's nothing to stop lower fees for vanilla options (via a better spread band) if your counterparty knows you're going to be trading a lot. On that subject your credit arrangements, collateral agreements and margin costs may also be a criteria between the 2 choices. So I guess if you have standard products to trade and see no benefit from a long term relationship with any 1 counterparty, go exchange, otherwise investigate your OTC options.
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