At times this month it has traded at half the cost of gas in the UK.
European sugar has traded at roughly double the world market rate for almost two decades.
Since then, Palm has traded at prices that appear to be unreasonably high relative to the price of 3Com shares.
He also wrote that the announcement might help lift Medco's stock price, which has traded at a discount to the Express Scripts offer.
February has been a good month for the Dow Jones industrial average as it has traded at levels not seen since the 2008 financial crisis.
It agreed to merge with Daimler-Benz A.G., which has traded at a higher multiple in the German market, where investors have regarded auto stocks more favorably.
But at the start of the year it was £5, and has traded at £8.50 for just 85 days in the past year.
Schwab will waive its annual account service fee if an investor has traded at least eight times in the previous 12 months.
Protocall went public last July, and since then, its stock has traded at a high of $4 and a low of 80 cents.
In recent months, its stock has traded at a price about equal to the value of the cash on its books, a sign of investors' expectations.
