diff --git a/.gitignore b/.gitignore
index 199dffd..c35ce48 100644
--- a/.gitignore
+++ b/.gitignore
@@ -104,7 +104,7 @@ venv.bak/
 .mypy_cache/
 
 # exclude data from source control by default
-data/
+./data
 
 # Mac OS-specific storage files
 .DS_Store
diff --git a/data_scraper/test/data/cboe/SPX_March_2019.csv b/data_scraper/test/data/cboe/SPX_March_2019.csv
new file mode 100644
index 0000000..3663c71
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_March_2019.csv
@@ -0,0 +1,526 @@
+underlying,underlying_last,exchange,optionroot,type,expiration,quotedate,strike,last,net,bid,ask,volume,openinterest,impliedvol,delta,gamma
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190301.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190301.csv
new file mode 100644
index 0000000..60fd0e0
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190301.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190304.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190304.csv
new file mode 100644
index 0000000..6a07a78
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190304.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190305.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190305.csv
new file mode 100644
index 0000000..2d74ad2
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190305.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190306.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190306.csv
new file mode 100644
index 0000000..9b8c192
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190306.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190307.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190307.csv
new file mode 100644
index 0000000..16406bb
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190307.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190308.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190308.csv
new file mode 100644
index 0000000..2d6f80c
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190308.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190311.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190311.csv
new file mode 100644
index 0000000..818ea8c
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190311.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190312.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190312.csv
new file mode 100644
index 0000000..a903320
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190312.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190313.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190313.csv
new file mode 100644
index 0000000..1eee9de
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190313.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190314.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190314.csv
new file mode 100644
index 0000000..edbd48c
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190314.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190315.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190315.csv
new file mode 100644
index 0000000..7aaea0a
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190315.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190318.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190318.csv
new file mode 100644
index 0000000..78be045
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190318.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190319.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190319.csv
new file mode 100644
index 0000000..b0892eb
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190319.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190320.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190320.csv
new file mode 100644
index 0000000..fb64527
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190320.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190321.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190321.csv
new file mode 100644
index 0000000..f483019
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190321.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190322.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190322.csv
new file mode 100644
index 0000000..4934257
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190322.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190325.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190325.csv
new file mode 100644
index 0000000..4352b9e
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190325.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190326.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190326.csv
new file mode 100644
index 0000000..d520cd1
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190326.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190327.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190327.csv
new file mode 100644
index 0000000..a232492
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190327.csv
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190328.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190328.csv
new file mode 100644
index 0000000..383f34e
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190328.csv
@@ -0,0 +1,26 @@
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diff --git a/data_scraper/test/data/cboe/SPX_daily/SPX_20190329.csv b/data_scraper/test/data/cboe/SPX_daily/SPX_20190329.csv
new file mode 100644
index 0000000..84c249e
--- /dev/null
+++ b/data_scraper/test/data/cboe/SPX_daily/SPX_20190329.csv
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