Bullish pre-earnings action in Oclaro (OCLR). Shares of the San Jose, CA optical component maker are up 4 cents to $11.80 and 6,750 calls traded in the name, which is 12X the typical volume and 10X the day’s put activity. The top trade is 743-contract lot of May 12.5 calls at the 60-cent asking price. The next is 613 May 12.5 calls at 60 cents. Both are opening buyers, according to ISEE data. 4,325 now traded. Jun 12.5 and Jul 17.5 calls are seeing interest as well. The company is due to release results after the closing bell. OCLR tumbled 18.6 percent on March 9 after peer Finisar posted disappointing earnings. It continued falling, losing another 24.6 percent through April 19, but is on a six-day 15.7 percent winning streak since that time.