Gartner Says Semiconductor Inventory Correction Dampening Sales in Second Half of 2011
Reduced Sales Relative to Expectations Are Leading to a Rise in Days of Inventory
The days of inventory (DOI) level in the semiconductor supply chain was elevated going into the third quarter of 2011, but corrective action will help bring it under back control at the cost of reduced sales for semiconductor vendors, according to Gartner. DOI is an efficiency ratio that measures the average number of days the company holds its inventory before selling it.
"We expect that average selling prices (ASPs) for foundry-produced components will be under pressure through the first half of 2012 because of aggressive investment in capacity made as the industry came out of the last recession," said Peter Middleton, principal research analyst at Gartner. "That investment is leading to excess capacity at the same time as concern is rising about end-market demand levels due to weak economic prospects."
Gartner's Index of Inventory Semiconductor Supply-chain Tracking (GIISST) moved further into the caution zone as levels hit 1.16 in 3Q11, up from 1.12 in Gartner's initial 3Q11 update in September.
Within the GIISST, an above DOI level of 1.10 indicates inventories are inflated, and there will likely be downward pressure on ASPs. Below the 0.95 level indicates that inventories are low, components may be on allocation, and double ordering begins.
The GIISST is a single number that measures the health of the semiconductor industry. It assesses "normal" inventory levels throughout the supply chain and compares them with current levels to evaluate industry trends. It gauges the normal inventory level at each stage of production that will allow for a smooth flow of products and management of the production process without inventory shortages or surpluses.
"The proportion of total semiconductor inventory held by OEMs has begun to rise; however, it is still near historic lows, which will help reduce the impact of an order correction on semiconductor vendor sales," said Gerald van Hoy, senior research analyst at Gartner.
New Methodology: Lead-Time Tracking
Gartner has developed a new methodology to add further insight to its inventory analysis. It is based on observing the trends in lead time for high-volume semiconductor components as reported by distributors. The initial application for this methodology is for components used in mobile phones and media tablets. Using information gathered from mobile phone teardown analyses, a list of representative parts was compiled and was used as a reference to compile a weekly tracking system for lead times for these parts.
"Our Distributor Lead-Time Analysis showed that semiconductor lead times dropped significantly from June to September 2011. This showed a weakening in immediate demand," Mr Van Hoy said.
Additional information is available in the Gartner report "Semiconductor Inventory Correction Dampens Sales in Second Half of 2011." The report is available on Gartner's website at http://www.gartner.com/....
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