A market sentiment indicator measured by looking at the number of opening long call options to opening long put options acquired in the International Stock Exchanges. The gauge only looks at purchases of customers and does not include the purchases by market makers. Customers are said to be the best measures of sentiment. To compute the ISEE Sentiment Indicator, divide the long calls purchased by the long puts purchased, then multiply the result by 100. A reading above 100 signifies a more bullish sentiment while a value below 100 means a more bearish sentiment.