Boston Scientific (BSX, news, chart) is seeing a noticeable increase in bearish order flow late in the day. The stock is up 9 cents to $11.89 and 13,000 puts have traded, compared to fewer than 4,000 call options. The September and January 10 puts are the most actives, with nearly 11,000 contracts traded and 95 percent of today’s volume trading askside. No news on BSX today, but the action seems to suggest that some players are worried about a possible decline in Boston Scientific shares in the not too distant future.