SBI証券, MONEX, カブコム 現物株売買手数料比較

s.rb

# https://site1.sbisec.co.jp/ETGate/WPLETmgR001Control?OutSide=on&getFlg=on&burl=search_home&cat1=home&cat2=price&dir=price&file=home_price.html
sbi = {
  0..10 => 150,
  10..20 => 199,
  20..50 => 293,
  50..100 => 525,
  100..150 => 628,
  150..3000 => 994,
  3000..Float::INFINITY => 1050
}

# http://www.monex.co.jp/ServiceInformation/00000000/guest/G100/srv/srv05.htm
# 50万以上は, 成行の場合手数料が2/3になる.
monex = {
  0..10 => 108,
  10..20 => 194.4,
  20..30 => 270,
  30..40 => 378,
  40..50 => 486,
  50..100 => 1500,
  100..Float::INFINITY => -> (n) { n * 0.0015 * 10000 } # 万円 -> 円
}

# http://kabu.com/item/stock/cost.html
kabu = {
 0..5 => 146,
 5..15 => 243,
 15..25 => 340,
 25..55 => 632,
 55..100 => 1069,
 100..200 => 2041,
 200..Float::INFINITY => 3985
}

tests = [1, 5, 10, 20, 50, 100, 200, 500, 1000]

def a(n, ranges)
  t = ranges.select{|k,v| k.include?(n+1) }.values.first
  t.is_a?(Proc) ? t.call(n) : t
end

[sbi, monex, kabu].each do |sec|
  p tests.map{|n| a(n, sec)}
end

# => [150, 150, 199, 293, 525, 628, 994, 994, 994]
# => [108, 108, 194.4, 270, 1500, 1500.0, 3000.0, 7500.0, 15000.0]
# => [146, 243, 243, 340, 632, 2041, 3985, 3985, 3985]