本研究欲藉由指數現貨市場上三大法人交易行為及未平倉量來解釋到期日效應，以及探討愈接近到期日期貨市場存在的異常價格波動度之情形，並利用期貨交易人的下單行為來說明此異常現象。本文以最後結算價制度改變時點將樣本分為兩個區間，結果顯示現貨市場三大法人的交易行為確實與到期效應存在顯著相關，在舊制下以自營商之影響程度最為明顯，而新制下則以投信之交易行為具有較顯著之影響。
    在研究期貨到期當週短期價格波動度時，以十五秒為一個區間，研究結果發現，期貨交易人下單行為對期貨市場的價格波動度存在顯著之影響，大致上來說，當交易人前一期買的行為愈積極，也就是較偏好使用市價買單，會導致下一期的短期價格波動度下跌，然而當交易人下賣單的行為愈積極，反而會使得下一期短期價格波動度提高。又進一步的討論影響交易人下單行為之原因後發現，當整體市場交易人觀察到前一期市場價格上升時，會偏好使用市價委買單以及限價委賣單，反之亦然。再者，由於台灣期貨市場是屬於委託單驅動市場，亦即市場流動性是由期貨交易人所提供，根據本文研究結果顯示，市場交易人使用限價委託單的行為存在負的自我相關，表示當期貨交易人發現市場上限價單量較為缺乏時，會傾向於使用限價單以彌補市場缺乏流動性之情形，由此可知，台灣期貨市場之委託單確實存在自動調整機制以維持市場之流動性。

The objective of this paper is to find out how the futures market is affected by the traders’ behavior. We not only investigate whether the institutional traders’ activities and open interests are the main factors causing expiration-day effect of index futures contracts, but examine the relationship between the role of limit-order trading and abnormal volatility in the futures market. We separate the data into two panels according to the timing that changes the settlement mechanisms, and the result reveals that there is a significant correlation between institutional traders’ activities and expiration-day effect. Before changing the settlement mechanisms, Proprietary Dealer’s level of effect is the greatest. However, the Trust’s level of effect is the greatest after they change the settlement mechanisms. 
    When we did the research on the transitory price volatility at futures expiration week, the empirical analysis was conducted based on 15-second intervals. The result reveals that there is a significant correlation between the trader’s order behavior and the price volatility of the future market. Basically, if the trader’s buying behavior was aggressive in the previous period, in other words, to use more market buy orders, it would cause the transitory price volatility to decline in the next period. However, if the trader’s selling behavior was aggressive in the previous period, it would cause the transitory price volatility to rise in the next period. After further discussion about the reasons effecting the trader’s prefer to use market buy orders and limit sell orders when they observe a rise on the market price in the previous period, and vice versa. Moreover, Taiwan futures market is and order driven market, which means that the market liquidity is provided by the futures traders, and according to our research result, there is a negative autocorrelation when the market traders use limit sell order, which means that when traders observe that there is a scarcity of limit orders, they will prefer to submit limit orders to replenish the scarcity of liquidity. This result reflects the self-adjusting mechanism of the order flow in Taiwan futures market to maintain the market liquidity.

謝辭………………………………………………………Ⅰ
中文摘要…………………………………………………Ⅱ
英文摘要…………………………………………………Ⅲ
目錄……………………………………………………………Ⅴ
圖表目錄………………………………………………………..Ⅵ 
第壹章 前言
第一節 研究動機與背景……………………………………………1
第二節 研究目的……………………………………………4
第三節 研究架構與流程………………………………………5
第貳章 文獻回顧
第一節 到期日效應………………………………………………7
第二節 市場參與者行為對到期效應之影響………………………11
第三節 波動度與下單行為之實證研究………………………14
第参章 研究方法
第一節 研究資料…………………………………………17
第二節 變數衡量方法………………………………………21
第肆章 實證結果與分析
第一節 到期日效應………………………………………………31
第二節 機構投資人交易行為對現貨市場之影響……………36
第三節 期貨市場交易人下單行為與短期波動度之關聯性……41
第伍章 結論…………………………………………………………55
參考文獻 ……………………………………………………58

圖表目錄
【表3-1】交易檔資料格式……………………………………18
【表3-2】委託檔資料格式………………………………18
【表3-3】揭示檔資料格式…………………………………19
【表3-4】各類投資人身分碼………………………19
【表4-1】到期日效應各變數之敘述統計量(T=最後交易日)…34
【表4-2】到期日效應各變數之敘述統計量(T=最後結算日)………35
【表4-3】到期效應與期貨市場交易之關聯性………………….39
【表4-4】到期效應與現貨市場三大法人交易行為之關聯性……….40
【表4-5】整體期貨市場交易人的下單行為對下一期向上波動度之影響……..43
【表4-6】整體期貨市場交易人的下單行為對下一期向下波動度之影響……..45
【表4-7】期貨市場各類交易人的下單行為對下一期向上波動度之影響……..47
【表4-8】期貨市場各類交易人的下單行為對下一期向下波動度之影響……..48
【表4-9】期貨市場交易人下買單行為與前一期波動度之關聯性...………51
【表4-10】期貨市場交易人下賣單行為與前一期波動度之關聯性...………54

參考文獻
1.	林蒼祥、顧廣平(2008)，期交所股價指數期貨契約最後結算價與最後結算日
決定方式之研究，臺灣期貨交易所委託專題研究計畫報告。
2.	李見發、林榮裕、陳秀綾(2005)，台灣股價指數期貨及摩根台指期貨到期效
應之因素研究，財金論文叢刊 第三期，51-76.
3.	蔡垂君(2002)，臺灣股價指數期貨與現貨之實證研究，國立臺北大學企業管
理學系博士論文。	
4.	Ahn, H., Bae, K.H., and Chan K. (2001), Limit orders, depth, and volatility: 
Evidence from the Stock Exchange of Hong Kong, Journal of Finance,56, 
767-778.
5.	Alkeback, P. and Hagelin, N. (2004), Expiration day effects of index futures and 
options： Evidence from a market with a long period, Applied Financial 
Economics 14, 385-396.		
6.	Allen, F., Litov, L. and Mei, J. (2006), Large investors, price manipulation, and limits to arbitrage：An anatomy of market corners, Reviews of Finance 10, 645-693.
7.	Arago, V. and Fernandez, A. (2002), Expiration and maturity effect：Empirical 
evidence from the Spanish spot and futures stock index, Applied Economics 34, 
1617-1626.
8.	Biais, B., Pierre H., and Chester S. ( 1995), An empirical analysis of the
limit order book and the order flow in the Paris Bourse, Journal of Finance 50,
1655-1689.
9.	Chamberlain, T. W., Cheung, S.C. and Kwan, C.C.Y. (1989), Expiration day effects of index futures and options：Some Canadian evidence, Financial Analysts Journal 45, 67-71.
10.	Chen, C. and J. Williams (1994), Triple-witching hour, the change in expiration timing and stock market reaction, Journal of Futures Market 14,275-292.
11.	Chow,H.C.,Chen,W.N.,and Chen,D.H.(2006),The expiration effects of 
stock-index derivatives : Empirical evidence from the Taiwan Futures Exchange, 
Emerging Market Finance and Trade 42, 81-102.
12.	Chow, Y.F., Yung, H. M., and Zhang, H. (2003), Expiration-day effects：The 
case of Hong Kong, Journal of Futures Markets 23, 67-86.
13.	Coppejans, M., Ian D., and Ananth M. ( 2001), Liquidity in an automated auction, eBusiness Research Center, Working Paper.
14.	Corredor, P., Lechon, P., and Santamaria R. (2001), Option-expiration effects in 
small markets：The Spanish Stock Exchange, Journal of Futures Markets 21, 
905-928.
15.	Edwards, F. P. (1988), Does futures trading increase stock market volatility? Financial Analysts Journal 44, 63-69.
16.	Glosten, L.R. (1994), Is the electronic open limit order book inevitable? Journal 
of  Finance 49, 1127-1161.
17.	Handa, P., and Robert A. S. (1996), Limit order trading, Journal of Finance 51, 1835-1861.
18.	Hancock, G. D. (1993), Whatever happened to the triple witching hour? Financial Analysts Journal 49, 66-72.
19.	Herbst, A. F. and Maberly, E. D. (1990), Stock index futures, expiration-day 
volatility, and the special Friday opening：A note, Journal of Futures Markets 10, 
323-325.
20.	Hsieh, S.F., and Ma, T. (2009), Expiration-day effects：Does settlement price 
matter? International Review of Economics and Finance 18, 290-300.
21.	Jones, C. M., Gautam K., and Marc L. L. (1994), Transactions, volume, and volatility, Review of Financial Studies 7, 631-651.
22.	Khwaja, A. I., and Mian, A. (2005), Unchecked intermediaries：Price manipulation in an emerging stock market, Journal of Financial Economics 78,203-241.
23.	Kyle, A. S. (1985), Continuous auctions and insider trading, Econometrica 53,
1315-1336.
24.	Lee, C., Belinda M., and Mark J. R. (1993), Spreads, depths, and impact of earnings information: An intraday analysis, Review of Financial Studies 6,345-374.
25.	Sadath, A., and Kamaiah, B. (2009), Expiration effects of stock futures on the 
price and volume of underlying stocks：Evidence from India, University of 
Hyderabad, Hyderabad-500046.
26.	Samuelson, P. A. (1965), Proof that properly anticipated prices fluctuate 
rabdomly, Industrial Management Review 6, 41-49.
27.	Samuelson, P. A. (1976), Is real-world price a tale told by the idiot of chance? 
Review of Economics and Statistics 58, 120-123.
28.	Schlag, C. (1996), Expiration day effects of stock index derivatives in Germany, European Financial Management 1, 69-95.
29.	Stoll, H. R., and Whaley, R. E. (1986), Expiration effects of index option and 
futures, Monograph Series in Finance and Economics, Monograph 1986-3.
30.	Stoll, H. R., and Whaley, R. E. (1987), Program trading and expiration day 
effects, Financial Analysts Journal 43, 16-28.
31.	Stoll, H. R., and Whaley, R. E. (1990a), Program trading and individual stock 
returns：Ingredients of the triple-witching brew, Journal of Business 63, 
165-192.
32.	Stoll, H. R., and Whaley, R. E. (1990b), Stock market structure and volatility, 
Review of Financial Studies 63,165-192.
33.	Stoll, H. R., and Whaley, R. E. (1991), Expiration-day effects：What has 
changed? Financial Analysis Journal 47,58-72.
34.	Stoll, H. R., and Whaley, R. E. (1997), Expiration-day effects of the All 
Ordinaries Share Price Index Futures：Empirical evidence and alternative 
settlement procedures, Australin Journal of Management 22, 139-174.
35.	Vipul (2005),futures and options expiration-day effects：The Indian Evidence, Journal of Futures Markets 25, 1045-1065.