{"schemaVersion":1,"source":"Yahoo Finance price/volume; Trend Screeners model-book calculations","sourceUrl":"https://finance.yahoo.com/","generated":"2026-07-29","calculation":"advance = (peakPrice / pivot - 1) * 100; percentages rounded in article","limitations":"Retrospectively selected historical case, not a strategy success rate or realized investment return. Weekly chart data only; daily/hourly trade-simulation inputs are not included.","case":{"slug":"model-merck-1990","sym":"MRK","name":"Merck","market":"US","bench":"S&P 500","baseStart":"1990-01-01","baseEnd":"1990-05-14","baseLen":20,"baseDepth":16.2,"baseLow":10.6552,"baseLowDate":"1990-02-19","pivot":12.7226,"breakout":"1990-05-21","breakoutClose":13.3588,"volSurge":56,"peak":"1991-12-30","peakPrice":26.9959,"advance":112.2,"weeks":84,"shakeout":19.6,"shakeFrom":"1990-07-16","shakeTo":"1990-09-24","ongoing":false},"weeklyColumns":["date","open","high","low","close","volume"],"weekly":[["1989-01-02",9.10464,9.40283,8.94561,9.26368,21306259],["1989-01-09",9.26368,9.66126,9.10464,9.60162,31709755],["1989-01-16",9.60162,9.74078,9.50223,9.60162,27408134],["1989-01-23",9.66126,10.3968,9.58174,10.2576,42194995],["1989-01-30",10.2179,10.3968,10.1185,10.3769,27018278],["1989-02-06",10.357,10.5558,9.74078,9.91969,24029593],["1989-02-13",9.82029,10.357,9.82029,10.3371,25883295],["1989-02-20",10.3769,10.3769,9.87993,9.91969,17617089],["1989-02-27",9.91969,10.2576,9.87993,10.1384,23833407],["1989-03-06",10.2378,10.3769,10.0588,10.198,22412947],["1989-03-13",10.2775,10.5757,10.1185,10.2576,33347780],["1989-03-20",10.198,10.4167,10.039,10.1781,15086169],["1989-03-27",10.1582,10.4365,10.0986,10.3371,16290321],["1989-04-03",10.3173,10.5359,10.2775,10.3769,18753959],["1989-04-10",10.3968,10.7347,10.3173,10.695,20380665],["1989-04-17",10.6155,10.9335,10.5359,10.9335,26099603],["1989-04-24",10.8341,10.9534,10.695,10.854,17649159],["1989-05-01",10.7745,10.9534,10.6155,10.7546,15760244],["1989-05-08",10.7745,11.2118,10.6155,11.192,23596348],["1989-05-15",11.2118,11.5498,11.1721,11.51,31857524],["1989-05-22",11.5697,11.5895,10.7745,11.2118,34599720],["1989-05-29",11.1522,11.4504,10.8938,11.4504,18750816],["1989-06-05",11.4305,11.4901,11.2118,11.3311,19878254],["1989-06-12",11.3112,11.4106,10.7546,10.9335,35320324],["1989-06-19",10.8739,11.1323,10.4962,11.1124,20158699],["1989-06-26",11.1323,11.1721,10.5558,10.6353,23190144],["1989-07-03",10.6353,11.2516,10.5956,11.2317,17895020],["1989-07-10",11.2516,11.4901,11.1522,11.4305,21619402],["1989-07-17",11.4106,11.9871,11.3709,11.9474,26647286],["1989-07-24",11.9076,12.3847,11.6691,12.1263,24790439],["1989-07-31",12.1462,12.166,11.6492,11.6889,23613956],["1989-08-07",11.7287,11.9672,11.5498,11.7088,24788553],["1989-08-14",11.6691,12.1859,11.6691,12.007,21547718],["1989-08-21",11.9871,12.007,11.5895,11.7883,25504128],["1989-08-28",11.8082,11.9076,11.5697,11.7287,19980120],["1989-09-04",11.7486,11.7684,11.2118,11.2715,24735735],["1989-09-11",11.3311,11.4504,11.1124,11.2715,29642261],["1989-09-18",11.2913,11.6094,11.2715,11.4703,15082396],["1989-09-25",11.4106,12.1263,11.2913,12.0468,25443134],["1989-10-02",11.9672,12.4046,11.9076,12.4046,21698001],["1989-10-09",12.3648,12.4046,11.1721,11.5697,18168546],["1989-10-16",11.0727,12.4245,10.9534,12.3648,40800317],["1989-10-23",12.3449,12.663,11.9275,11.9871,26065018],["1989-10-30",12.0666,12.4841,12.007,12.1263,16190342],["1989-11-06",12.0468,12.7425,11.9474,12.7226,21474149],["1989-11-13",12.8022,12.8419,11.9672,12.166,37470191],["1989-11-20",12.1462,12.6431,12.1263,12.6233,11198928],["1989-11-27",12.5835,12.6431,12.3847,12.5437,17048654],["1989-12-04",12.5636,12.5636,12.1263,12.1859,18450249],["1989-12-11",12.1859,12.3052,12.0865,12.2257,21740131],["1989-12-18",12.1263,12.2257,11.8877,12.1462,20368719],["1989-12-25",12.1462,12.3251,11.9871,12.3251,12758981],["1990-01-01",12.2853,12.7226,12.1859,12.2455,26910753],["1990-01-08",12.2455,12.4841,11.9076,11.9474,25677048],["1990-01-15",11.8877,11.9474,11.2715,11.6889,41186400],["1990-01-22",11.6889,11.7088,11.0926,11.4504,31665739],["1990-01-29",11.4504,11.6691,11.2118,11.5299,20236041],["1990-02-05",11.5498,11.6293,11.2317,11.5895,20309611],["1990-02-12",11.5498,11.5895,11.2913,11.3709,18236458],["1990-02-19",11.2913,11.3112,10.6552,10.8142,25127476],["1990-02-26",10.7745,11.0727,10.7347,11.0727,32772427],["1990-03-05",11.0528,11.2317,10.8739,10.8938,27166674],["1990-03-12",10.854,11.2516,10.6751,11.2516,25132507],["1990-03-19",11.1323,11.2913,10.8341,11.0727,21949522],["1990-03-26",11.1323,11.51,11.0329,11.0528,18254693],["1990-04-02",10.9733,11.5895,10.9335,11.5697,19589007],["1990-04-09",11.4703,11.8877,11.4703,11.8877,12806769],["1990-04-16",11.9076,11.9474,11.5895,11.8281,24663422],["1990-04-23",11.7287,11.7486,11.4703,11.4901,17051169],["1990-04-30",11.4703,11.7684,11.3907,11.7088,15465337],["1990-05-07",11.6889,12.3449,11.6691,12.2853,27227040],["1990-05-14",12.3449,12.6829,12.3052,12.6034,30807428],["1990-05-21",12.6034,13.5774,12.5636,13.3588,36896727],["1990-05-28",13.16,13.3985,13.1202,13.3588,21790435],["1990-06-04",13.3985,13.4383,12.6431,12.7226,22351325],["1990-06-11",12.6829,13.319,12.6829,13.1799,26460532],["1990-06-18",13.1401,13.4582,12.8817,13.001,21813702],["1990-06-25",13.0805,13.8756,13.001,13.7961,19847442],["1990-07-02",13.7762,13.9949,13.6371,13.7564,12689184],["1990-07-09",13.7365,14.2335,13.657,14.1341,19173999],["1990-07-16",14.1738,14.4919,14.1142,14.313,28068373],["1990-07-23",14.313,14.472,13.4781,14.0347,25902788],["1990-07-3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2586,23.3779,21.708,22.3441,40404800],["1992-04-27",22.1851,23.0598,22.0857,22.8809,30079905],["1992-05-04",23.0598,23.6562,23.0399,23.5767,21467232],["1992-05-11",23.6164,23.8152,23.02,23.0399,22141305],["1992-05-18",23.0996,24.3321,23.0797,24.2724,25831734],["1992-05-25",24.2724,24.4513,23.3779,24.0339,16116772],["1992-06-01",23.855,24.511,23.1989,23.5568,23118042],["1992-06-08",23.6761,23.7357,22.7815,23.4971,17364940],["1992-06-15",23.3182,23.7953,22.4833,23.02,20744322],["1992-06-22",23.3182,24.1531,22.4237,22.6622,25139006],["1992-06-29",22.7219,23.855,22.6622,23.6164,13956216],["1992-07-06",23.7357,24.4513,23.6164,24.0339,16976132],["1992-07-13",24.1531,24.1531,23.6164,23.855,14200399],["1992-07-20",23.3779,23.7953,23.1989,23.4971,13356551],["1992-07-27",23.4971,24.7495,23.4971,24.7495,15695476],["1992-08-03",24.6899,25.4652,24.6302,24.8688,15669486],["1992-08-10",24.8092,25.2266,24.511,25.2266,11152187],["1992-08-17",25.1073,25.2863,24.1531,24.2128,14969213],["1992-08-24",24.0339,24.5706,23.3182,23.5568,15081139],["1992-08-31",23.3779,23.7953,22.7815,23.3779,22151996],["1992-09-07",23.3779,23.4375,22.6622,22.9008,11703435],["1992-09-14",23.1989,23.2586,21.9466,22.6026,25957074],["1992-09-21",22.4833,22.6026,20.1574,20.8731,33911813],["1992-09-28",20.6345,21.4695,20.1574,20.5153,29469340],["1992-10-05",20.2767,20.6345,19.3225,19.6207,32641219],["1992-10-12",19.74,21.1713,19.74,20.2767,33841597],["1992-10-19",20.3364,21.4098,19.3822,19.6207,39770972],["1992-10-26",19.6207,21.1713,19.6207,20.9327,25455920],["1992-11-02",20.8731,21.4695,19.74,20.0978,25188679],["1992-11-09",20.0382,22.0062,19.9189,21.708,30066910],["1992-11-16",21.708,22.2448,21.5291,22.0062,18615624],["1992-11-23",21.9466,22.0062,21.4098,21.8273,13063321],["1992-11-30",21.8273,22.0658,21.4098,21.8273,16672633],["1992-12-07",21.8869,22.7219,21.5887,22.6622,20279429],["1992-12-14",22.6026,22.7815,22.0062,22.364,20297664],["1992-12-21",22.364,22.7219,21.2309,21.3502,15059550],["1992-12-28",21.3502,21.5291,20.6942,20.6942,13302054]]}