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Factor Modeling : Discoverying alpha by using new factor

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2023ํ•™๋…„๋„ 2ํ•™๊ธฐ ๊ฒฝํฌ๋Œ€ํ•™๊ต ๊ธˆ์œต๋ฐ์ดํ„ฐ๋ถ„์„ ํ”„๋กœ์ ํŠธ ์ž…๋‹ˆ๋‹ค.

๐Ÿš€ ํ”„๋กœ์ ํŠธ ์†Œ๊ฐœ

๋ณธ ํ”„๋กœ์ ํŠธ๋Š” S&P500 & KAIST & UNIST & KYUNGHEE ํ€€ํŠธ ํˆฌ์ž ๋ชจ๋ธ ๊ฒฝ์ง„๋Œ€ํšŒ์—์„œ ์ œ๊ณต๋œ S&P500 ๋ฐ์ดํ„ฐ๋ฅผ ์‚ฌ์šฉํ•˜์˜€์Šต๋‹ˆ๋‹ค.

๋ณธ ํ”„๋กœ์ ํŠธ๋Š” ์ œ๊ณต๋œ ๋ฐ์ดํ„ฐ๋ฅผ ์ตœ๋Œ€ํ•œ ํ™œ์šฉํ•˜๊ณ ์ž ํ•˜์˜€์œผ๋ฉฐ ๋‹ค์–‘ํ•œ ๋ฐ์ดํ„ฐ์…‹์œผ๋กœ๋ถ€ํ„ฐ ์ƒˆ๋กœ์šด ํŒฉํ„ฐ๋ฅผ ์ฐพ๊ณ  ์ด ํŒฉํ„ฐ๋ฅผ ํ™œ์šฉํ•˜์—ฌ ์•ŒํŒŒ๋ฅผ ์ฐพ๋Š” "ํŒฉํ„ฐ ๋ชจ๋ธ๋ง"๊ณผ "ํŒฉํ„ฐ ํˆฌ์ž"๋ฅผ ์ง„ํ–‰ํ•˜์˜€์Šต๋‹ˆ๋‹ค.


๐Ÿ“Œ ํ”„๋กœ์ ํŠธ ๊ตฌ์„ฑ

ํ”„๋กœ์ ํŠธ๋Š” ํฌ๊ฒŒ ํŒฉํ„ฐ ๋ชจ๋ธ๋ง๊ณผ ํŒฉํ„ฐ ํˆฌ์ž ๋ฐ ๋ฐฑํ…Œ์ŠคํŒ…์œผ๋กœ ๋‘ ํŒŒํŠธ๋กœ ๋‚˜๋ˆŒ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

์šฐ์„  ํŒฉํ„ฐ์˜ ๊ฒฝ์šฐ, ์‹œ์žฅ ์ „์ฒด๋ณด๋‹ค๋Š” ํŠน์ • ์„นํ„ฐ๊ฐ€ ๋” ๋†’์€ ์„ค๋ช…๋ ฅ์„ ๋ณด์ผ ๊ฒƒ์ด๋ผ ํŒ๋‹จํ•˜์—ฌ ๊ฒฐ์ธก์น˜๊ฐ€ ์ œ์ผ ์ ์€ ๋ฐ”์ด์˜ค ์„นํ„ฐ์—์„œ๋งŒ ๊ตญํ•œํ•˜์—ฌ ์ง„ํ–‰ํ•˜์˜€์Šต๋‹ˆ๋‹ค.

ํŒฉํ„ฐ ๋ชจ๋ธ๋ง์—์„œ๋Š” ์žฌ๋ฌด, ์ถ”์ •์น˜, ๋งˆ์ผ“ ๋ฐ์ดํ„ฐ๋ฅผ ํ™œ์šฉํ•˜์˜€์œผ๋ฉฐ ํŒฉํ„ฐ์˜ ์„ค๋ช…๋ ฅ์— ๋Œ€ํ•œ ๊ฒ€์ฆ์€ ์„นํ„ฐ๋ฅผ ์„ค๋ช…ํ•˜๋Š” ํฌํŠธํด๋ฆฌ์˜ค์˜ ์ผ๋ณ„ ์ˆ˜์ต๋ฅ ๊ณผ ๊ฐœ๋ณ„ ๊ธฐ์—…๊ฐ„์˜ ์ผ๋ณ„ ์ˆ˜์ต๋ฅ ์˜ OLS๋ฅผ ํ†ตํ•ด ์ „์ฒด ๋ฐ”์ด์˜ค ๊ธฐ์—… ์ˆ˜ ๋Œ€๋น„ X% ์ด์ƒ์˜ ๋น„์œจ๋กœ P-value๊ฐ€ 0.05์ดํ•˜๋กœ ๋‚˜์˜ค๋ฉด ์œ ์˜๋ฏธํ•˜๋‹ค๊ณ  ํŒ๋‹จํ•˜์˜€์Šต๋‹ˆ๋‹ค.

์žฌ๋ฌด ๋ฐ์ดํ„ฐ์™€ ์ถ”์ •์น˜ ๋ฐ์ดํ„ฐ ์…‹์˜ ๊ฒฝ์šฐ ๋ฐ์ดํ„ฐ์˜ ๊ตฌ์„ฑ๊ณผ ๊ฒฐ์ธก์น˜ ๋น„์œจ ๋“ฑ ๋‹ค์–‘ํ•œ ๋ถ€๋ถ„์—์„œ ์ฐจ์ด๋ฅผ ๋ณด์—ฌ ํŒฉํ„ฐ ๋ชจ๋ธ๋ง์— ๋Œ€ํ•œ ํŒŒ์ดํ”„๋ผ์ธ์„ ๋”ฐ๋กœ ๊ตฌ์ถ•ํ•˜์˜€๊ณ , ํ†ตํ•ฉํ•˜์—ฌ ๊ฒ€์ฆํ•˜๊ธฐ ์œ„ํ•œ ๋ฐฑํ…Œ์ŠคํŒ… ํŒŒ์ดํ”„๋ผ์ธ๊ณผ ์ตœ์ข…์ ์œผ๋กœ ์–ป์€ ๋ฉ€ํ‹ฐ ํŒฉํ„ฐ์— ๋Œ€ํ•œ ํฌํŠธํด๋ฆฌ์˜ค์™€ ๋ฐ”์ด์˜ค ์„นํ„ฐ ETF์˜ ์ˆ˜์ต๋ฅ  ๋น„๊ตํ•˜๋Š” ํŒฉํ„ฐ ํˆฌ์ž์— ๋Œ€ํ•œ ๋ถ€๋ถ„์„ ๊ตฌํ˜„ํ•˜์˜€์Šต๋‹ˆ๋‹ค.

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Discoverying alpha by using new factor that describes the biology sector

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