กฎลงทุน 10 ข้อ ของ บ็อบ ฟาเรล

efinAI

ดร. บุญธรรม รจิตภิญโญเลิศ บ็อบ ฟาเรล ถือเป็นนักวิเคราะห์ด้านเทคนิคและนักกลยุทธ์ระดับชั้นนำ ของแบงก์สหรัฐที่มีชื่อเสียงมากในยุคทศวรรษ 80 เขาได้ตั้งกฎการลงทุน 10 ข้อ ของ บ็อบ ฟาเรล ที่มีชื่อเสียงเป็นอย่างมาก ดังนี้ 1.ตลาดมีแนวโน้มจะเข้าสู่ค่าเฉลี่ย เมื่อเวลาผ่านไปเรื่อยๆน่าจะไม่มีอะไรดีไปกว่าการพล็อตจุดต่างๆของอัตราผลตอบแทนของตลาดหุ้นสหรัฐในอดีต ซึ่งจะขอใช้ดัชนี S&P500 ของตลาดหุ้นสหรัฐ ที่มีอัตราผลตอบแทนเฉลี่ยระยะยาวที่ราว 7% หากไปดูรูปเมื่อตีเส้นค่าเฉลี่ยระยะยาวดังกล่าว จะพบว่ามีทั้งส่วนที่มีอัตราผลตอบแทนสูงและต่ำกว่าค่าเฉลี่ยสลับกันและเข้าสู่ค่าเฉลี่ยในระยะยาว

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