The outlets that offer subscription services that I can think of are, SqueezeMetrics, SpotGamma, HauVolatility and TradingVolatility. Squeezemetrics and TradingVolatility provide free Gamma exposure indicators (That are based on the end of the day open interest), but you will have to pay to get more real-time or intraday alerts.
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Calculates estimate of dark pool buying based on publicly available exchange data - jensolson/Dark-Pool-Buying
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Squeezemetrics dishes on GEX/VEX If you aren't following SqueezeMetrics on twitter @SqueezeMetrics….start. It seems all they talk about is the GEX and or VEX, but their recent paper shows why it's so important. It provides a map of where and how liquidity is taken and provided to the S&P 500, and by default - sort of the whole system.
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根據 SqueezeMetrics 估計，股市每下跌 1%，交易公司就需要拋售 300 億美元的股票，來對沖他們的部位。而當股市上漲 1% 時，這些公司就需要購買 300 億 ...
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比利時網紅遊南投遭「逼車」 邱顯智嘆：留學回台，多次差點被車撞死2020-07-21 11:18:42失業率狂飆、美股又大跌！當所有市場規則被推翻，你只需要 ...
"This paper is the first high-profile one to really give the idea a proper treatment," said Matt Zambito of SqueezeMetrics, an analytic service that tracks derivatives exposure. "People are taking these ideas seriously now," he said. At the center of it all is what's known as gamma hedging.