NEW YORK (TheStreet) -- Micron Technologies (MU) - Get Report plummets after MKM Partners initiates coverage with a cautious outlook for the DRAM chip maker. Tesla Motors (TSLA) - Get Report tanks after CLSA cuts its price target and downgrades the company. Taiwan Semiconductor Manufacturing (TSM) - Get Report plunges on reports that it may be losing some of its Nvidia (NVDA) - Get Report business to Samsung Electronics (SSNLF) . 

Micron Technology plunged 5% to close at $26.57.

The DRAM chip maker took a hit after MKM Partners initiated coverage with a neutral rating and warned: 

Despite sentiment already being negative, we think continued caution is warranted in the PC supply chain, as recovery into better seasonality could be slow and gradual.

Additionally, MKM stated that it will search for signs around summertime as to whether there are catalysts to bring sustained balance to the DRAM market. MKM set a $33 price target for Micron and expects it will post earnings of $3.07 a share for 2015.

Tesla fell 3.7% to end the day at $194.30.

The high-end electric vehicle maker tanked after CLSA downgraded its rating to underperform from outperform as well as cut its price target to $220 from $275, according to a Bloombergreport.

The CLSA research note, according to Bloomberg, stated, "We see risk to near-term earnings from lower initial Model X margins, which in light of Tesla's recent execution issues and together with investor concerns around demand, could limit this year's upside potential."

Taiwan Semiconductor plummeted 5.4% to close at $23.18.

The Taiwanese chip maker fell after an RBC Capital Markets research report noted Nvidia may have allocated some of its chip production business to Samsung Electronics that would have otherwise gone to Taiwan Semiconductor, according to a Barron's report.

The RBC analyst bases this assessment on discussions with Nvidia's management and its annual report filed with the Securities and Exchange Commission. In addition to its research that points to some of Nvidia's business going to Samsung, RBC also speculates Nvidia may also turn to Intel (INTC) - Get Report for some of the chip production.

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.