EST aren’t the best times to buy and sell stocks for most traders, since stock prices tend to be more stable. The upshot: Mid-day trading hours between 11:30 a.m. EST don’t typically offer traders much profit potential. Without trading volume to drive strong price movements, plus a general lack of price-moving news, the hours between 11:30 a.m. Company news released during the midday or afternoon hours seldom creates the volatility seen after the open. Afternoon HoursĪfter the morning mayhem, price movements and trading volume tend to settle down. ![]() EST-is possibly the best time of the day to buy and sell stocks for those who are looking to capitalize on price volatility. The upshot: Early market trading between 9:30 a.m. So they can buy and sell during these first few minutes and hours with the full knowledge that stock prices typically stabilize by midday. Traders know the price-moving news is old by the time the market opens. In fact, traders often refer to the market open as being full of “dumb money”-a harsh phrase used to describe those who buy or sell at the worst possible times, usually on the heels of a bombastic early morning headline. Professional traders know that the stock market open is one of the best times of the day to buy and sell stocks. Similar to overnight news, new headlines before the open can drive plenty of pre-market trading, with similar effects as overnight news. These trades are settled after the open, which can drive big gains or losses in stock prices. Company news that breaks after the closing bell on the prior day often drives after-hours trading. The reasons may vary, but two of the most common causes of price volatility at this time include: Stock prices typically see dramatic moves right after the open. EST, which begins cash trading in the U.S. Here are the key characteristics of each part of the trading day, and a look at why they are the best times to buy or sell stocks. Memory Usage: 13.5 MB, less than 5.41% of C++ online submissions for Best Time to Buy and Sell Stock II.Seasoned traders know that certain times of the trading day offer better buying and selling opportunities than others. Runtime: 12 ms, faster than 71.71% of C++ online submissions for Best Time to Buy and Sell Stock II. find peak, it's larger than its right point In case we skip one of the peaks (trying to obtain more profit), we will end up losing the profit over one of the transactions leading to an overall lesser profit.įor example, in the above case, if we skip peak_ipeak i and valley_jvalley j trying to obtain more profit by considering points with more difference in heights, the net profit obtained will always be lesser than the one obtained by including them, since CC will always be lesser than A+BA+B. The key point is we need to consider every peak immediately following a valley to maximize the profit. Public int calculate(int prices, int s) (height(peak_i)-height(valley_i)) TotalProfit=∑ i(height(peak i)−height(valley i)) In this case, we simply calculate the profit corresponding to all the possible sets of transactions and find out the maximum profit out of them. ![]() Memory Usage: 9.3 MB, less than 97.55% of C++ online submissions for Best Time to Buy and Sell Stock II. Runtime: 8 ms, faster than 99.42% of C++ online submissions for Best Time to Buy and Sell Stock II. You must sell before buying again.Įxplanation: In this case, no transaction is done, i.e. Note that you cannot buy on day 1, buy on day 2 and sell them later, as you areĮngaging multiple transactions at the same time. Then buy on day 4 (price = 3) and sell on day 5 (price = 6), profit = 6-3 = 3.Įxplanation: Buy on day 1 (price = 1) and sell on day 5 (price = 5), profit = 5-1 = 4. ![]() Note: You may not engage in multiple transactions at the same time (i.e., you must sell the stock before you buy again).Įxplanation: Buy on day 2 (price = 1) and sell on day 3 (price = 5), profit = 5-1 = 4. You may complete as many transactions as you like (i.e., buy one and sell one share of the stock multiple times). Say you have an array for which the ith element is the price of a given stock on day i.ĭesign an algorithm to find the maximum profit.
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