nk225 3/25 O H L C 2020/03/25 18400 19450 18290 19240 nk225 3/25 ±0 20279 R3 19710 19767 R2 18670 -0.5 19194 R1 18330 18621 TP 17810 -1σ 18109 S1 17290 17597 S2 16950 -1.5 17024 S3 15910 16451 -2σ 15939