Shortly after noon EDT on Apr. 25, 2018, the New York Stock Exchange (NYSE) announced it would suspend trading on five symbols due to a price scale coding malfunction. The affected stocks are Amazon (AMZN), Booking Holdings Inc. (BKNG), Alphabet Inc. Class A and Class C (GOOGL and GOOG), and Zion Oil & Gas Inc. (ZNWAA). These stocks are still being traded on the ♛Nasdaq, NYSE A🔯rca, and NYSE American today. 

In a , the exchange announced that tr🙈ades of the five symbols will be suspended for the day and that any outstanding orders will be canceled. 

"To me it sounds extremely minor and not a bꦚig deal but definitely♓ part of the [Nasdaq symbol migration] rollout," said Joe Saluzzi, partner and co-founder at Themis Trading . 

On the NYSE, a price scale code is used convert a whole integer price in binary to a decimal price for a given stock. Price scale codes determine the decimal position of a company's converted price. Codes of 0, 1, 2, 3, 4, or 6 indicate the exponent of base 10 by which the whole integer price should be divided.  

(image: NYSE)

A NYSE API  gives the following example: Whole integer price is 1350 and the price scale code is 2. To determine the decimal price, divide 1350 by 100 (10^2 or 10²). The result is a decimal price of 13.50. 

Earlier this morning, the exchange alerted traders that execution reports priced at $1000 or higher were being incorrectly published with a price scale code of 5. In other words, stocks priced above a $1000 threshold were being divided by a larger number than was accurate⛦ to determine their trading prices. 

As of 1:15 pm today on the NASDAQ, AMZN was trading at $1450.61, GOOG at $1025.ꦕ17, GOOGL at $1029.98, and BKNG at $2079.00.