EXHIBIT 99.1 FOR IMMEDIATE RELEASE ADVANCED ENERGY REPORTS THIRD QUARTER REVENUES UP 95 PERCENT FROM THIRD QUARTER OF 1998 FORT COLLINS, CO (OCTOBER 11, 1999) -- Advanced Energy Industries, Inc. (Nasdaq NM: AEIS) today reported financial results for the third quarter and nine-month period ended September 30, 1999. Advanced Energy is an industry-leading manufacturer of critical power delivery systems to original equipment manufacturers to make semiconductors, compact disks, data storage, flat panel displays, and industrial products. For the third quarter of 1999, revenues were $51.1 million, up 95 percent from $26.3 million for the third quarter of 1998 and up 23 percent from $41.5 million for the second quarter of 1999. "Revenue growth was driven primarily by increasing demand from our core customers in the semiconductor equipment industry," said Douglas S. Schatz, chairman and CEO. "Shipments to semiconductor equipment manufacturing clients are more than three times what they were a year ago as this global market continues to strengthen. We have seen greater demand for blank CDs, driven by the adoption of the MP3 format. DRAM overcapacity issues are fading, and computer prices are firming slightly. Additionally, we are seeing a proliferation of DVD drives in both TV and PC platforms. These factors have contributed to rapid growth in our data storage and flat panel display applications business, which now accounts for approximately 17 percent of revenue." Net income for third quarter of 1999 was $5.5 million, or $0.20 per diluted share, compared to a net loss of $3.5 million, or $0.13 per share in the third quarter of 1998. 1999 third quarter income almost doubled from 1999 second quarter income of $2.8 million, or $0.10 per diluted share. "The level of products shipped from our Voorhees facility exceeded our expectations and suppressed our gross margin at 44 percent which is below our goal. We believe that we have continued upside potential in the gross margin at that facility as we continue our materials management program implementation. R&D expenditures for the quarter were $6.9 million, or 13.6 percent of revenue, reflecting our continued investment in developing new products that enable our customers to maximize the value of their process equipment, and the expansion of our Silicon Valley design facility to meet the needs of customers in that region. We are committed to making the necessary R&D investments to maintain our leadership position in the power conversion and control marketplace. At the same time, we believe we have the operations discipline, infrastructure, and expanding product portfolio to continue to meet our profitability and growth plans," concluded Mr. Schatz. For the nine months ended September 30, 1999, revenues were $125.4 million compared with $102.1 million for the same period of 1998. Gross profit for the 1999 nine-month period improved measurably to $53.9 million, or 43 percent, compared with $30.1 million, or 29.5 percent, for the 1998 period. Net income for the 1999 nine-month period was $8.8 million, or $0.31 per diluted share, compared to a net loss of $5.7 million, or $0.22 per diluted share, for the nine-month period ended September 30, 1998. 1998 third quarter and nine-month financial results have been restated to reflect the 1998 fourth quarter acquisition of RF Power Products, Inc. (RFPP), using the pooling of interests method of accounting. SAFE HARBOR STATEMENT Except for any historical information contained herein, the matters discussed in this news release are forward-looking statements that reflect our current beliefs and expectations including the achievement of goals established by the Company to improve gross margin and maintain operating expenses in line with revenue and continued sales growth in non-semiconductor areas. Actual results may differ materially from the forward-looking statements which by their nature are subject to risks and uncertainties including fluctuations in quarterly and annual revenues and operating results, the volatility of the semiconductor and semiconductor capital equipment industries and other risks detailed from time to time in the Company's Form 10-K, Forms 10-Q and other reports and statements filed with the Securities and Exchange Commission. The Company continues to be susceptible to fluctuations in quarterly and annual revenues and operating results and the volatility of the semiconductor and semiconductor capital equipment industries. The Company assumes no obligation to update the information in this release. ABOUT THE COMPANY Founded in 1981, Advanced Energy Industries, Inc. is a leading manufacturer of power delivery systems that are critical in the manufacturing of semiconductors, data storage media, flat panel displays, and other products using thin-film technology. The Company also manufactures ion beam sources and plasma abatement systems for applications in data storage and semiconductor manufacturing. Within its comprehensive product portfolio of direct current (DC), low/mid-frequency and radio frequency (RF) solutions, the Company sells hundreds of different products critical in applications ranging from compact disks, digital video disks, flat panel displays, the most popular logic semiconductor devices, among many other applications. The Company's stock is traded on the Nasdaq National Market under the symbol AEIS. ADVANCED ENERGY INDUSTRIES, INC. CONSOLIDATED INCOME STATEMENT (in thousands except per share data) Quarter Ended Nine Months Ended September 30, September 30, 1999 1998 1999 1998 (unaudited) (unaudited) (unaudited) (unaudited) Sales $51,142 $26,292 $125,385 $102,142 Cost of sales 28,598 18,317 71,450 72,046 Gross profit 22,544 7,975 53,935 30,096 Operating expenses: Research and development 6,935 5,722 19,545 17,951 Sales and marketing 4,187 3,255 11,471 10,331 General and administrative 3,715 2,353 9,673 7,980 Restructuring charge -- 1,000 -- 1,000 Income (loss) from operations 7,707 (4,355) 13,246 (7,166) Other income (loss) 1,131 (214) 1,148 13 Net income (loss) before income taxes 8,838 (4,569) 14,394 (7,153) Provision (benefit) for income taxes 3,303 (1,089) 5,555 (1,422) Net income (loss) $ 5,535 $(3,480) $ 8,839 $ (5,731) Basic earnings (loss) per share $ 0.20 $ (0.13) $ 0.33 $ (0.22) Diluted earnings (loss) per share $ 0.20 $ (0.13) $ 0.31 $ (0.22) Basic weighted-average common shares outstanding 27,048 26,585 26,940 26,536 Diluted weighted-average common shares outstanding 28,318 26,585 28,172 26,536 ADDITIONAL INFORMATION: Earnings (loss) before interest, taxes, depreciation and amortization $10,561 $(2,982) $ 19,275 $ (2,838) ADVANCED ENERGY INDUSTRIES, INC. CONSOLIDATED BALANCE SHEET (in thousands) September 30, December 31, 1999 1998 (unaudited) (unaudited) ASSETS Current Assets: Cash and equivalents $ 11,261 $ 12,295 Marketable securities - trading 17,329 15,839 Accounts receivable 37,176 15,604 Income tax receivable 539 3,576 Inventories 23,465 21,412 Other current assets 1,377 797 Deferred income tax assets, net 4,768 4,112 Total current assets 95,915 73,635 Property and equipment, net 15,565 15,320 Other assets 3,597 3,494 Goodwill and intangibles, net 7,550 8,586 Total assets $122,627 $101,035 LIABILITIES AND STOCKHOLDERS' EQUITY Current Liabilities: Accounts payable, trade $ 11,414 $ 5,675 Other current liabilities 8,280 5,123 Accrued income taxes payable 1,508 567 Current portion of long-term debt 613 211 Total current liabilities 21,815 11,576 Long-term debt 203 326 Stockholders' equity 100,609 89,133 Total liabilities and stockholders' equity $122,627 $101,035 ADVANCED ENERGY INDUSTRIES, INC. CONSOLIDATED STATEMENT OF CASH FLOWS (in thousands) Nine Months Ended September 30, 1999 1998 (unaudited) (unaudited) CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 8,839 $(5,731) Depreciation and amortization 5,511 4,886 Accounts receivable (21,572) 16,903 Inventories (2,053) 8,226 Accounts payable, trade 5,739 (9,269) Other 4,873 (5,613) Net cash provided by operating activities 1,337 9,402 CASH FLOWS FROM INVESTING ACTIVITIES: Purchase of marketable securities (3,000) (1,000) Sale of marketable securities 1,928 2,500 Purchase of stock investment -- (1,000) Purchase of property and equipment, net (4,215) (4,565) Acquisition of assets of FST, Inc. -- (2,500) Net cash used in investing activities (5,287) (6,565) CASH FLOWS FROM FINANCING ACTIVITIES: Net change from notes payable and capital lease obligations 279 (4,415) Proceeds from sale of common stock 2,960 393 Other -- 67 Net cash provided by (used in) financing activities 3,239 (3,955) EFFECT OF CURRENCY TRANSLATION ON CASH FLOW (323) (115) DECREASE IN CASH AND CASH EQUIVALENTS (1,034) (1,233) CASH AND EQUIVALENTS, beginning of period 12,295 12,041 CASH AND EQUIVALENTS, end of period $ 11,261 $10,808