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Displaying 3 out of 3 results for "VIX".

More Impossible Trade Prices Caused by Auto-liquidators: Option Combinations

(Dec 2015)

In three previous blog posts, we documented how auto-liquidators execute option trades at distorted prices to their clients' detriment. The price distortions are caused by the price impact of large sell or buy orders on thinly traded securities. These distortions were reversed within minutes, but not before causing investors millions of dollars of unnecessary losses.

In "The Recent Market Turmoil Spells Trouble for Auto-liquidators like Interactive Brokers", we showed that thinly traded...

Only a Faulty Auto-liquidator Pays More for An Option Than it Can Ever Be Worth

(Nov 2015)

In two previous blog posts we documented how auto-liquidators appear to have executed option trades at distorted prices to their clients' detriment on August 24, 2015. The price distortions were caused by massive sell or buy orders on thinly traded securities being dumped into the market by auto-liquidation programs. These distortions were reversed within minutes, but not before causing investors millions of dollars of unnecessary losses.

In "The Recent Market Turmoil Spells Trouble for...

More Signs of Trouble for Auto Liquidators

(Oct 2015)

In "The Recent Market Turmoil Spells Trouble for Auto Liquidators Like Interactive Brokers" we wrote about how the market decline on August 24, 2015 revealed continuing problems at auto-liquidating brokerage firms that cater to active traders. These active traders' accounts typically are subject to "portfolio margin" requirements which we have written about at length. 1

We showed that thinly traded long-dated, deep out-of-the money SPX put options were bought on August 24, 2015 at...

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