MSFT – October 50 Call OI rises from 16,446 to 27,615 (beautiful chart sets up for breakout from large Cup & Handle formation, providing some leadership to Tech when Apple takes a back seat)

VOD – September 39 Call OI rises from 557 to 6,601 (discussions with LBTYA have gone further, now talking about full merger instead of just asset swap deal, positive for the stock)

TWTR – Jan’16 31-strike Put OI rises from 3,703 to 9,436 (puts sold to open, also large put sellers in December yesterday)

WBA – August (7) Weekly 97-strike Call OI rises from 120 to 5,354 (same store sales out tomorrow)

GPS – September 35 Put OI rises from 555 to 12,153 (same store sales out tomorrow)

HZNP – August 37 Call OI rises from 1,685 to 3,308 (love this growth story and comes with reasonable valuation)

GM – Jan’17 30-strike Call OI rises from 6,959 to 27,136 (see the report on rising New Vehicle Sales from BofA)

PCAR – September 60 Put OI rises from 8 to 5,632 (rolled out from August 62.5 puts with position size increased, charts sets up for breakdown)

RAD – August (14) Weekly 9-strike Call OI rises from 1,208 to 29,205 (chart is breaking out)

OIH – October 29 Put OI rises from 646 to 34,733 (rolled out from October 31 strike puts)

MELI – August 125 Call OI rises from 18 to 491 (unusual small bullish action ahead of earnings on August 5)

CAT – August (14) Weekly 78-strike Put OI rises from 117 to 5,799 (chart sets up for breakdown again)

TSLA – August (7) Weekly 290-strike Call OI rises from 2,541 to 4,378 (strictly earnings play, somebody is looking for home run through $300 this week after earnings)