World Semiconductor Trade Statistics

Reports of 2Q’19 financials from all of the major OEMs in our 213 company global sample show that their electronic equipment sales declined 1.4 percent compared to the same quarter of last year.

There is a glimmer of light at the end of the tunnel. But most electronic industry time series will likely struggle at least though autumn.

Part 1 of this article discussed the Memory Inventory Cycle Index and compared it with memory device sales and memory fab equipment investments. This article, the second of the two-part series, illustrates how the Memory Inventory Cycle Index starts to weaken before memory sales of the top three memory suppliers decline. It also shows how the Memory Inventory Cycle Index peaked in the fourth quarter of last year along with YoY growth rates for both memory sales and memory fab equipment investments.In addition to the weakening signaled by the Memory Inventory Cycle Index, memory suppliers are facing headwinds in the form of tariffs as mentioned in Micron’s most recent earnings call. The U.S.-China trade dispute could reduce Micron’s profitability; China granted a preliminary injunction to prevent Micron’s Chinese subsidiary from manufacturing and selling in China this July. However, it is very difficult to quantify the risk the tariffs pose to the future of the memory market.On the other hand, the YoY growth rate of semiconductor sales according to the World Semiconductor Trade Statistics is closely tied to China’s manufacturing sector as shown by the Purchasing Managers Index (PMI) New export orders and Orders in hand sub-indexes. Figure 3 shows that as the growth rate of new exports and order backlog slows, the YoY growth rate of semiconductor sales will be adversely impacted. As the largest consumer of semiconductors in the world, China will bear the brunt of the slowing market. Figure 3. Memory Inventory Cycle Index China manufacturing sector PMI’s sub-indices * RemarksChina PMI’s sub-indices are on the basis of the data published by NBS (National Bureau of Satistics of China). Also those data were calculated based on 12MMA (12-month moving average) to minimize seasonal fluctuation. The YoY growth rate of the 3-month moving average of semiconductor sales in China alone, China and Asia Pacific, and all regions showed additional declines in July (Figure 4). Monitoring the Orders in hand and New export orders sub-indices for China and China’s semiconductor consumption and WSTS sales revenue in China can help track the risk of trade disputes. Figure 4. YoY growth rate of semiconductor sales revenue in China and Asia Pacific * Remarks1) Regions as defined by WSTS’ Bluebook.2) Sales revenue were calculated based on 3MMA (3-month moving average value). A review of the relationship between the Memory Inventory Cycle Index, semiconductor sales, and memory fab equipment investment growth rates suggests we have passed the peak in the current cycle. However, bear in mind that the Work In Process (WIP) to Finished-goods inventory ratio has sharply increased since 2017 as shown in Figure 5. The increase in WIP inventory could be attributed to the increasing technical challenges associated with 3D NAND stacking and DRAM scaling. As a result, the proportion of finished-goods inventory in total inventory remained low until the second quarter of 2018, possibly implying that memory demand remained healthy in spite of the contraction modeled by the Memory Inventory Cycle Index. Figure 5. The proportion of finished-goods inventory in the total inventories * Remarks 1) All inventories data from 3 companies’ financial reports were calculated based on 4-quarter moving average.2) Total Inventory accounts for the sum of Finished-Goods, WIP, and Raw materials inventory.3) Company data complied by SEMI. The Memory Inventory Cycle Index has entered a period of contraction, which is supported by Micron’s weak guidance for its fiscal first quarter of 2019 (September to November). The outlook for memory sales and memory fab equipment investments reported by WSTS and SEMI, respectively, also suggests that a market correction is underway. While the low proportion of finished-goods inventory does not threaten the market yet, it should remind industry observers to view high WIP inventories with caution. Unlike past inventory cycles, the high inventory levels could burden the memory market in the absence of sustainable demand.Sungho Yoon is a senior market research analyst in Industry Research and Statistics at SEMI. SEMI China IC Ecosystem ReportLearn more about 30 new fab construction projects underway or planned in China in the newly released SEMI China IC Ecosystem Report. The research report is a comprehensive update and analysis of China's IC manufacturing ecosystem with charts, graphs, tables and maps.

Micron, one of the top three memory semiconductor companies, reported solid results for the fourth quarter of fiscal 2018 (June to August) to extend a multi-quarter string of strong growth. However, the company’s mediocre guidance for the current quarter has raised concerns that memory demand will start to slow.To shed light on this super memory cycle, which began in the second half of 2016, this article examines correlations among the top three memory suppliers’ sales revenue, quarterly inventory levels, World Semiconductor Trade Statistics (WSTS) market data, and memory fab equipment investments reported by SEMI.The Memory Inventory Cycle Index, which is based on financial data reported by Samsung, SK Hynix and Micron, is the difference between the year-over-year growth rates of sales (or shipments) and inventories. The index explains business cycle fluctuations such as expansions and contractions, trending up in expansions and declining in contractions. Figure 1 shows both historical Micron sales (blue dotted line) and the quarterly Memory Inventory Cycle Index (black solid line). To minimize seasonal fluctuations, both were calculated based on a four-quarter moving average of sales and inventories. Figure 1. Memory Inventory Cycle Index Compared to Memory Sales* Remarks1) Memory Inventory Cycle Index = YoY growth rate of memory sales revenues - YoY growth rate of memory total inventoris value on a four quarters moving average.2) Calculated memory sales and inventoris are based on Samsung, SK Hynix, and Micron public announcements.3) South Korea Won were converted to US$ based on the quaterly average value released by FRED.4) Companies’ sales data were calculated based on 4-quarter moving average.5) Company data complied by SEMI. As shown in Figure 1, the Memory Inventory Cycle Index has been declining since peaking in the fourth quarter of 2017, mirroring the previous two contractions – in 2010 and 2014 – in which memory sales slowed or stagnated after four quarters of the index decline. Accordingly, if this relationship holds between the Memory Inventory Cycle Index and sales, Micron’s sales will slow in the coming quarters and is consistent with Micron’s guidance for the current quarter. Moreover, the index suggests that the sum of three companies’ sales (the solid red line) will exhibit a similar trend of decreased growth in the coming quarters, which will impact the annual growth rate of global memory sales.WSTS recently increased its 2018 forecast for memory sales to 30.5%, up from 26.5% projected in June of this year. However, the 3-month moving average of memory sales shows that memory sales already increased by 48% YoY in the first half of the year, which means growth is expected to be lower in the second half of the year. Other signs pointing to a weaker end to the year include front-end equipment investments by the top three memory suppliers. SEMI is modeling an annual increase of only one percent for the year for these suppliers, with spending down 23% in the second half relative to the first half of the year.Figure 2 shows the historical trend of the Memory Inventory Cycle Index, the YoY growth rate of memory sales, and YoY memory fab equipment investments. The Memory Inventory Cycle Index increased faster than memory sales and fab equipment investments in the past two cycles. In the most recent memory cycle, these three indexes are moving in tandem, each peaking in the fourth quarter of 2017. Figure 2. Memory Inventory Cycle Index, Memory Sales and Memory Fab Equipment Investments* Remarks1) Both sales and memory fab equipment investments data were calculated based on 4-quarter moving average to minimize seasonal fluctuation.2) All data are from SEMI, except memory sales (WSTS) While overall memory sales continue to be strong this year, memory ASPs have shown signs of weakening right after the inventory index peak. NAND flash ASPs have been trending downward since the first quarter of 2018. With the recent inventory correction and short-term CPU shortage, DRAM ASPs are expected to soften in the fourth quarter of 2018. The looming memory market slowdown has memory makers adjusting their capacity expansion plans for the rest of this year. Some new capacity additions, especially for DRAM, have been pushed out to 2019. The memory inventory cycle index has to some extent foretold the slowdown of the memory market. In the second and final part of this article, we will discuss the correlation between the Memory Inventory Cycle Index and China’s semiconductor sales and Purchasing Managers Index. We will also look at the increasing level of memory inventory in the past few quarters and its composition including Work-in-Progress and Finished goods. Clark Tseng is director and Sungho Yoon is senior market research analyst in Industry Research and Statistics at SEMI. SEMI World Fab ForecastFor the latest worldwide memory fabs forecast including company details, please see the SEMI World Fab Forecast. The report includes quarter-to-quarter fab data from planning to production for both DRAM and NAND Flash companies.