Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: table of contents the following table discloses purchases of shares of our common stock made by us or on our behalf during the fourth quarter of 2015 . period total number of shares purchased average price paid per share total number of shares not purchased as part of publicly announced plans or programs ( a ) total number of shares purchased as part of publicly announced plans or programs approximate dollar value of shares that may yet be purchased under the plans or programs ( b ) . <table class='wikitable'><tr><td>1</td><td>period</td><td>total numberof sharespurchased</td><td>averageprice paidper share</td><td>total number ofshares notpurchased as part ofpublicly announcedplans or programs ( a )</td><td>total number ofshares purchased aspart of publiclyannounced plans orprograms</td><td>approximate dollarvalue of shares thatmay yet be purchasedunder the plans orprograms ( b )</td></tr><tr><td>2</td><td>october 2015</td><td>1658771</td><td>$ 62.12</td><td>842059</td><td>816712</td><td>$ 2.0 billion</td></tr><tr><td>3</td><td>november 2015</td><td>2412467</td><td>$ 71.08</td><td>212878</td><td>2199589</td><td>$ 1.8 billion</td></tr><tr><td>4</td><td>december 2015</td><td>7008414</td><td>$ 70.31</td><td>980</td><td>7007434</td><td>$ 1.3 billion</td></tr><tr><td>5</td><td>total</td><td>11079652</td><td>$ 69.25</td><td>1055917</td><td>10023735</td><td>$ 1.3 billion</td></tr></table> ( a ) the shares reported in this column represent purchases settled in the fourth quarter of 2015 relating to ( i ) our purchases of shares in open-market transactions to meet our obligations under stock-based compensation plans , and ( ii ) our purchases of shares from our employees and non-employee directors in connection with the exercise of stock options , the vesting of restricted stock , and other stock compensation transactions in accordance with the terms of our stock-based compensation plans . ( b ) on july 13 , 2015 , we announced that our board of directors approved our purchase of $ 2.5 billion of our outstanding common stock ( with no expiration date ) , which was in addition to the remaining amount available under our $ 3 billion program previously authorized . during the third quarter of 2015 , we completed our purchases under the $ 3 billion program . as of december 31 , 2015 , we had $ 1.3 billion remaining available for purchase under the $ 2.5 billion program. .
Question: what is the total number of shares not purchased as part of publicly announced plans or programs during october 2015?
Answer: 842059.0
Question: what about the total number of shares not purchased as part of publicly announced plans or programs fourth quarter of 2015?
Answer: 1055917.0
Question: what portion of the purchase occurred during october?

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